Road America Explained

Road America
Nicknames:America's National Park of Speed[1]
Coordinates:43.7975°N -87.9939°W
Location:Town of Plymouth, Sheboygan County, at N7390 Highway 67, Elkhart Lake, Wisconsin, United States
Time:UTC-6 (UTC-5 DST)
Fiagrade:2
Owner:Road America, Inc.
Operator:Road America, Inc.
Former Names:Elkhart Lake's Road America (1955–1958)
Events:Current:
IndyCar Series
Grand Prix of Road America
(2016–present)
IMSA SportsCar Championship
Road Race Showcase at Road America
(2014–present)
GT World Challenge America
(1991–1996, 1998, 2002–2004, 2006, 2008–2009, 2014–present)
FR Americas
(2021–present)
MotoAmerica
(1980–present)
Trans-Am Series
(1970–2005, 2009–present)
SCCA Runoffs
(2009–2013, 2020, 2024–2025)
Former:
NASCAR Cup Series
Kwik Trip 250
(1956, 2021–2022)
NASCAR Xfinity Series
Road America 180
(2010–2023)
American Le Mans Series
Road America 500
(2002–2013)
CART
Road America 200
(1982–2004, 2006–2007)
Grand-Am
Rolex Sports Car Series
(2000–2001, 2011–2013)
Capacity:Open seating without capacity limitation
Miles First:True
Layout1:Grand Prix Course (1955–present)
Surface:Asphalt
Length Km:6.515
Length Mi:4.048
Turns:14
Record Time:1:41.874
Record Driver: Alex Zanardi
Record Car:Reynard 98I
Record Year:1998
Record Class:CART
Layout2:Motorcycle Course (2003–present)
Surface2:Asphalt
Length Km2:6.437
Length Mi2:4.000
Turns2:15
Record Time2:2:09.025
Record Driver2: Josh Herrin
Record Year2:2023
Record Class2:SBK
Layout3:Karting road course
Surface3:Asphalt
Length Km3:1.3
Length Mi3:0.8
Layout4:Off road racing road course (defunct)
Surface4:Clay
Length Km4:1.8
Length Mi4:1.1
Embedded:
Elkhart Lake Road Race Circuits
Embed:yes
Location:Cty Hwys, J, P, JP, A, and Lake St., Elkhart Lake, Wisconsin
Built:1950
Added:February 17, 2006
Area:56.7acres
Refnum:06000053

Road America is a motorsport road course located near Elkhart Lake, Wisconsin on Wisconsin Highway 67. It has hosted races since the 1950s and currently hosts races in the IndyCar Series, IMSA SportsCar Championship, Sports Car Club of America GT World Challenge America and Trans-Am Series and the MotoAmerica Superbike Championship.

Current track and facilities

Road America is a permanent road course. It is located midway between the cities of Milwaukee and Green Bay, and classified as an FIA Grade Two circuit.[2]

The track is situated on near the Kettle Moraine Scenic Drive. It has hosted races since September 1955 and currently hosts over 400 events a year.[3] Of its annual events, 9 major weekends are open to the public which include 3 motorcycle events including the MotoAmerica (AMA FIM) series, 3 vintage car events, Sports Car Club of America (SCCA) events, the United Sports Car Racing Series, the Pirelli World Challenge, and the NASCAR Xfinity Series.

Road America is one of only a handful of road circuits in the world maintaining its original configuration[3] being 4.048miles in length with 14 turns. The track features many elevation changes, along with a long front stretch where speeds approaching 200 mph (320 km/h) may be reached. One of the best known features of this course is a turn on the backside known as "the kink".

Road America's open seating allows spectators to venture throughout the grounds. Grandstands are available in several locations, as well as permanent hillside seating where crowds of more than 150,000 can be accommodated. Road America held one NASCAR Grand National race (now NASCAR Cup Series) in 1956 and two more Cup Series races in 2021 and 2022; NASCAR then opted to move the Cup Series and become a race in and around Downtown Chicago streets starting in 2023.

Briggs & Stratton Motorplex

In addition to the main course, the facility includes a 0.81NaN1 karting track called the Briggs & Stratton Motorplex inside the Carousel. The motorplex hosts two series of karting events. It hosts weekly events on Tuesdays in the summer. It also hosts approximately six Saturday events during the summer. The motorplex also hosts events sanctioned by the North Woods GP series running Supermoto and street bike racing using small displacement motorcycles.

Off road racing circuit

The Motorplex was built at the site of an earlier off road racing circuit used for several SODA events in the 1990s. The 1995 event was televised tape delayed on ESPN2 by reporters Marty Reid, Ivan Stewart, and Jimmie Johnson.[4] The course was 1.1miles long with 150feet of elevation change. The track featured a blind jump nicknamed "The Hell Hole".

Tunnel

In late 2006, Road America began a project to remove the old Bill Mitchell bridge and use a tunnel as the main entrance to the paddock. The tunnel project was completed in May 2007 with the grand opening celebration on May 31 for the AMA Suzuki Superbike Championship weekend.[5] The tunnel is 16.5feet high and 36feet wide and has two lanes of traffic and two pedestrian walkways on either side. With the removal of the bridge, a new spectator viewing area was created.

History of racing at Elkhart Lake

Open road course

In the late 1940s, road racing was gaining popularity, owing to the post World War II economy, and the influx of sporting automobiles. The Sports Car Club of America was the main organizer of these races, and in 1950, the Chicago Region SCCA and the Village of Elkhart Lake organized the first road race at Elkhart Lake.

The 1950 circuit start-finish line was on County Road P. Competitors went north to County Road J, then South into the Village of Elkhart Lake, and West on what is now County JP (then called County Highway X), and reconnected with County Road P for a total distance of 3.3miles.

For the next two races, in 1951 and 1952, a different course was used. It was 6.5miles long, on County Roads J, A, and P. To date, one may still drive most of the original course.

The original course was registered on the National Register of Historic Places on February 17, 2006. Signs have been installed marking key locations on the course.[6] [7]

Private road course

After the tragedy at Watkins Glen in 1952, where a child was killed, the U.S. ruled to discontinue motorized contests of speed on public highways. This was a major blow for competition auto racing and brought the end of a long-standing tradition. This did not permanently stop road racing, however, it did shift it to private courses. In 1955, Clif Tufte started what is now known as Road America, in a configuration that has changed little over the past 60 years. The addition of Road America as a private track meant a transition from racing through the streets of tiny Elkhart Lake to racing on a big, wide, dedicated race track.

Racing at Road America

Many different racing series have had the occasion to race at Road America. The first was the Sports Car Club of America (SCCA) on September 10, 1955.[8] The Road America 500 is a sports car race that was part of different championships, among them the SCCA National Sports Car Championship, the United States Road Racing Championship and the IMSA GT Championship. Currently it is a points-paying race of the IMSA SportsCar Championship. The Grand Prix of Road America is an open-wheel race that was held as part of the Champ Car World Series and currently it is a part of the IndyCar Series.

Other notable series have included NASCAR's Grand National (now NASCAR Cup Series) in 1956 and NASCAR Xfinity Series since 2010, CART from 1982 until 2007,[9] Grand-Am Rolex Sports Car Racing Series, CanAm, Trans-Am, AMA, and the SCCA National Championship Runoffs from 2009 to 2013. The Stadium Super Trucks began racing at the track starting in 2018; the trucks run a shortened course that bypasses turns 6 to 12, though the full layout is used on the final lap.[10] [11]

Road America also holds a variety of vintage racing events, including the Brian Redman International Challenge, now the HAWK with Brian Redman.

ALMS race history

At the 2008 Road America 500 an Audi R10 TDI set an LMP1 pole time of 1:46.935. At the 2009 Road Race Showcase, Dyson Racing Team set an LMP2 pole time of 1:51.010. At the 2011 Road Race Showcase, BMW Team RLL set a GT pole time of 2:05.447, while at the same event a Porsche 997 GT3 set a GTC pole time of 2:14.126.

NASCAR race history

Cup Series

See main article: Kwik Trip 250. One NASCAR Grand National (now NASCAR Cup Series) race was held in 1956. The track hosted two more Cup series races in 2021 and 2022 before being planned to be replaced by the Chicago Street Race in 2023.[12] [13]

YearDateDriverTeamManufacturerRace distanceRace timeAverage speed
(mph)
ReportRef
LapsMiles (km)
1956August 1215Tim FlockBill StroppeMercury63252 <-- Track distance of 4.048 miles established by CART in 1997, only 4.000 miles until then. -->3:29:5073.858Report[14]
1957

2020
Not held
2021July 49Chase ElliottHendrick MotorsportsChevrolet62250.48 (403.131)2:54:3386.271Report[15]
2022July 38Tyler ReddickRichard Childress RacingChevrolet62250.48 (403.131)2:35:5196.622Report

Xfinity Series

See main article: Henry 180.

On December 21, 2009, NASCAR announced that with the situation at the Wisconsin State Fair Park being unclear, and losing races at the Milwaukee Mile, they would move Milwaukee's Xfinity Series race to Road America. The first race was held on June 19, 2010 and was won by Carl Edwards.[16] In 2015, the race moved to late August during an off-weekend for the Sprint Cup Series.

YearDateWinning DriverTeamManufacturerRace DistanceRace TimeAverage Speed
(mph)
Report
LapsMiles (km)
2010June 19Carl EdwardsRoush Fenway RacingFord50202.4 (325.731)2:57:1768.501Report
2011June 25Reed SorensonTurner MotorsportsChevrolet57*230.736 (371.333)2:55:2478.929Report
2012June 23Nelson Piquet Jr.Turner MotorsportsChevrolet50202.4 (325.731)2:22:3585.171Report
2013June 22A. J. AllmendingerPenske RacingFord55*222.64 (356.224)2:58:50 74.697Report
2014June 21Brendan GaughanRichard Childress RacingChevrolet53*214.544 (345.275)2:48:0376.6Report
2015August 29Paul MenardRichard Childress Racing45182.20 (293.222)2:20:2177.874Report
2016August 27Michael McDowellRichard Childress RacingChevrolet48*194.304 (312.702)2:36:2074.573Report
2017August 27Jeremy ClementsJeremy Clements RacingChevrolet45182.20 (293.222)2:12:5382.25Report
2018August 25Justin AllgaierJR MotorsportsChevrolet45182.20 (293.222)2:23:5775.926Report
2019August 24Christopher BellJoe Gibbs RacingToyota45182.20 (293.222)2:11:3883.031Report
2020August 8Austin CindricTeam Penske45182.20 (293.222)2:56:3761.830Report
2021July 3Kyle BuschJoe Gibbs RacingToyota45182.20 (293.222)2:25:4774.972Report
2022July 2Ty GibbsJoe Gibbs RacingToyota48*194.304 (312.702)2:36:1474.621Report
2023July 29Sam MayerJR MotorsportsChevrolet49*198.352 (319.217)3:02:2165.265Report

Indy Car / Champ Car race results

See main article: Grand Prix of Road America. The CART Champ Car series held races at the track from 1982 to 2007, with the exception of 2005. The Verizon Indy Car Series revived the event beginning in 2016.

Major incidents and events at the track

2005 BRIC wreck

At the beginning of the Group 6 race in the 2005 Brian Redman International Challenge, there was a large incident consisting of most of the field: The driver starting fifth (Ray Mulacek, 1969 Chevrolet Camaro) accelerated well before the green flag and tried to force his way between the wall and the car in front of him, resulting in contact with the wall. A following car checked up and was rear-ended, causing a spin that led to further contact as following cars were unable to avoid the growing incident. After just a few seconds of green flag racing, the red flag was waved. Following the initial incident, the failure of trailing drivers to heed red flags being shown at 14 and 15 (under the bridge at the crest of the hill) may have compounded the issue. Nobody was seriously injured, with the worst injury being a broken arm.[17]

Cristiano da Matta deer incident

On August 3, 2006, Cristiano da Matta, driver of Champ Car's RuSPORT team and 2002 series champion, was involved in a collision with a deer during Champ Car open testing at Road America. The deer ran in front of his car as he was heading towards turn 6. He hit the deer with his right front tire, the deer then flew back and hit da Matta in the cockpit.[18] Da Matta was unconscious when the safety crew extricated him from the car,[19] and was airlifted via ThedaSTAR to Theda Clark Medical Center south of Appleton, where he underwent surgery to remove a subdural hematoma.[20]

Death of Adam Schatz

Adam Schatz, 26,[21] from Chicago, Illinois, died in a karting accident during the Road America Super Nationals, Championship Enduro Series on July 12, 2008.

Bump drafting was a determining factor of the crash.[22]

During the end of the race, Schatz was in second place. On the main straight, shortly after the last turn, Schatz saw the kart in third position on his left and tried to pull ahead to be bumped. As he did so, the kart in fourth position bumped the third, speeding the third kart up. At this point Schatz was not clear as to what was happening, and as he moved to his left, the two karts made contact.

Schatz's kart veered hard left and hit the wall. The impact sent the kart flying ten feet into the air ejecting the driver onto the track. The rest of the drivers avoided Schatz, some drivers stopped and after seeing Schatz's condition, waved to get medical help.[22]

The race was immediately stopped as medical assistance arrived on the place of the accident. Schatz had suffered brain stem and spinal cord injuries and his heart had stopped. He was revived by the doctors and taken to the Theda Clark Memorial Hospital in Neenah, Wisconsin, but his injuries proved to be too severe to survive and one week later he died.[23]

2015 CCR Tifosi Challenge red flag wreck

During the Pirelli World Challenge weekend, drivers Steve Hill and Jim Booth were involved in an intense battle for first. The drivers contacted each other heading towards turn 5, causing Jim Booth to go airborne into the catch fence at 150 mph. This caused significant damage to the fence throwing debris into the spectator area. Booth's car was completely destroyed while Hill was able to continue the race with minor damage. Neither of the drivers, personnel, or spectators were injured during the incident.[24]

Lap records

The official lap record for Road America is 1:39.866, set by Dario Franchitti during the qualifying of the 2000 Motorola 220 while the race lap record is 1:41.874, set by Alex Zanardi in the 1998 Texaco/Havoline 200. As of August 2024, the fastest official race lap records at Road America for different classes are listed as:

CategoryTimeDriverVehicleEvent
Grand Prix Course: 6.515 km (1955–present)
1:41.874[25] 1998 Texaco/Havoline 200
1:42.8921 2023 Sonsio Grand Prix at Road America
1:44.133 2006 Grand Prix of Road America
1:48.601[26] 2024 IMSA SportsCar Weekend
1:48.723[27] 2008 Road America 500
1:48.944[28] 1992 Road America 2 Hours
1:49.439 2008 Road America 500
1:51.034[29] 2020 IMSA SportsCar Weekend
1:51.4038[30] 2023 Road America Indy NXT round
1:53.403[31]
1:55.330[32]
1:55.458[33] 2016 Continental Tire Road Race Showcase
1:56.944
1:58.379[34]
1:58.566[35]
1:58.652[36] 2023 Road America Atlantic Championship round
1:59.245[37] 2017 Continental Tire Road Race Showcase
2:00.268[38]
2:01.3306[39] 2018 Road America Pro Mazda round
2:01.446[40] 2005 Road America 500
2:02.220[41] 1976 Road America F5000 round
2:02.281[42] 2021 IMSA SportsCar Weekend
2:03.272[43] 2023 Road America Trans-Am round
2:03.377[44] 2023 Road America FR Americas round
2:04.089 2023 IMSA SportsCar Weekend
2:04.374[45] 1973 Road America Can-Am
2:05.882[46] 2012 Road Race Showcase
2:05.961[47] 2019 Road America Lamborghini Super Trofeo North America round
2:06.115
2:06.593
2:08.597[48]
2:08.8197[49] 2023 Discount Tire Grand Prix of Road America
2:09.049[50]
2:09.182[51] 1991 IMSA GTO Road America 200 km
2:10.250[52] 1981 Road America 500 Miles
2:10.648[53] 1980 Road America Can-Am round
2:11.113[54]
2:11.399[55] 2000 Road America 500 Miles
2:12.408[56] 2023 Road America 180
2:12.453 2000 Road America 500 Miles
2:13.190[57] 2024 Road America F4 United States round
2:14.089[58] 2021 Jockey Made in America 250
2:14.5710[59] 2024 PFC Grand Prix of Road America
2:14.987[60] 2023 Road America 120
2.15.474[61] 2022 Road America GT America round
2:16.719 2000 Road America 500 Miles
2:17.762[62] 2008 Road America Formula BMW Americas round
2:17.799[63] 1977 Citicop Can-Am Challenge
2:18.035 2023 Road America 120
2:19.146[64] 1992 Nissan Grand Prix of Road America
2:20.208 1992 Nissan Grand Prix of Road America
2:22.193[65] 2024 Road America Mustang Challenge round
2:32.432[66] 2023 Road America Mazda MX-5 Cup round
2:43.700[67] 1972 Road America Trans-Am round
2:57.261[68] 1991 Nissan Grand Prix of Road America
Motorcycle Course: 6.437 km (2003–present)
2:09.025[69] 2023 Road America MotoAmerica round
2:16.685[70] 2023 Road America MotoAmerica round
2:23.321[71] 2024 Road America MotoAmerica round
2:38.493[72] 2023 Road America MotoAmerica round

Events

Current
Former

Other events outside racing

Road America is host to several non-automotive events.

In pop culture

Video games

The Road America track has been included in multiple racing video games, including Automobilista 2, the Forza Motorsport series, CART Precision Racing, iRacing, Raceroom Racing Experience, NASCAR Heat 2, NASCAR Heat 3, NASCAR Heat 4,NASCAR Heat 5, , , Project CARS, Project CARS 2, TOCA Race Driver 2, and Ride 3.

Wisconsin license plate

On October 4, 2021, the Wisconsin Department of Transportation introduced a special license plate honoring Road America, colored black and featuring an outline map of the Road America track (with a northward orientation; this article's infobox map features the track orientated westward) on its left side. The plate itself is fully black with all-white lettering, and has proven to be popular among state drivers for its 'blackout' design, especially among car clubs, and making vanity plate messages stand out, becoming the most requested specialty design in 2023, above specialty plates for the state's sports teams and a Harley-Davidson-specific design.[73]

External links

Notes and References

  1. staff. Continental Tire Sponsors Road America Race. National Speed Sport News. May 28, 2014. June 24, 2014.
  2. List of FIA licensed circuits. December 14, 2018. Federation Internationale de l'Automobile. September 24, 2019.
  3. Web site: Road Rage: American LeMans . Ridelust.com . 2008-08-09 . 2012-08-16.
  4. Road America . True Value Off Road Series . . 1995 . 1 .
  5. Web site: PaddockTalk . Road America To Remove Bridge and Add Tunnel :: PaddockTalk :: F1, Formula 1, NASCAR, IndyCar, MotoGP, ALMS, And More! . PaddockTalk . 2012-08-16 . dead . https://web.archive.org/web/20110929074503/http://paddocktalk.com/news/html/modules.php?op=modload&name=News&file=article&sid=46073 . 2011-09-29 .
  6. Web site: Elkhart Lake Road Race Circuits. January 2012 . Wisconsin Historical Society. 2016-05-30.
  7. News: Miller. Elizabeth L.. [{{NRHP url|id=06000053}} Elkhart Lake Road Race Circuits]. 2016-05-30. NRHP Inventory-Nomination Form. National Park Service. 2005-08-01.
  8. Web site: Christopher H. Kintner . Mg Vintage Racers . Mgvr.org . 2012-08-16.
  9. http://www.crash.net/feature_view~t~Preview--Mario-Andretti-Grand-Prix-~cid~3~id~3389.htm
  10. News: Kallman. Dave. Road America adds stadium off-road trucks to NASCAR Xfinity Series weekend. Milwaukee Journal Sentinel. October 17, 2017. October 17, 2017.
  11. Web site: Nguyen. Justin. SST: Gordon and Brabham take Road America victories. Overtake Motorsport. August 26, 2018. January 15, 2019.
  12. Web site: Hart. Megan. 2020-09-30. Road America Gets NASCAR Cup Series Race In 2021. 2020-09-30. Wisconsin Public Radio. en.
  13. Web site: NASCAR's Ben Kennedy says Road America won't be on the Cup schedule in 2023 . 2022-08-03 . Twitter . en.
  14. Web site: 1956-37. Racing-Reference. NASCAR Digital Media, LLC. January 18, 2021.
  15. News: Long. Dustin. Road America to host 2021 Cup race on July 4. NBC Sports. September 30, 2020. January 30, 2021 . https://web.archive.org/web/20210115023523/https://nascar.nbcsports.com/2020/09/30/road-america-to-host-2021-cup-race-on-july-4/ . January 15, 2021 . live.
  16. Web site: report on Road America . Scenedaily.com . 2012-08-16 . 2009-12-25 . https://web.archive.org/web/20091225124928/http://www.scenedaily.com/news/articles/nationwideseries/Road_America_to_replace_Milwaukee_on_2010_Nationwide_Series_schedule.html . dead .
  17. Web site: OT: Multi crash @ BRIC - Road America - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars . 20 July 2005 . Ford Forums . 2012-08-16.
  18. Web site: Articles . Speedtv.com . 2012-08-16 . dead . https://web.archive.org/web/20060815140226/http://www.speedtv.com/articles/auto/champcar/30253/ . 2006-08-15 .
  19. Web site: PaddockTalk . Wrong Place, Wrong Time: Cristiano da Matta Still in Critical Condition :: PaddockTalk :: F1, Formula 1, NASCAR, IndyCar, MotoGP, ALMS, And More! . PaddockTalk . 2012-08-16 . dead . https://web.archive.org/web/20070928013731/http://paddocktalk.com/news/html/modules.php?op=modload&name=News&file=article&sid=38632 . 2007-09-28 .
  20. Web site: Update on Condition of RuSPORT Driver Cristiano da Matta. August 4, 2006 . dead . https://web.archive.org/web/20080707031743/http://www.rusport.com/news/read/update-on-condition-of-rusport-driver-cristiano-da-matta . July 7, 2008 .
  21. Web site: Smith-Corcoran Funeral Home: Obituary: Mr. Adam W. Schatz . Smithcorcoran.com . 2012-08-16 . dead . https://web.archive.org/web/20120306040801/http://www.smithcorcoran.com/obits/obituaries.php/obitID/259864 . 2012-03-06 .
  22. Web site: The Motorsport Memorial Team. Motorsport Memorial . Motorsport Memorial . 2012-08-16.
  23. Web site: News . https://web.archive.org/web/20110710174909/http://www.ekartingnews.com/news_info.php?n=10507&sid=38c887cd09554c019ad4bf7f45d8117c&PHPSESSID=c81363d8325dd042e53f5665317fc4b1 . dead . 2011-07-10 . eKartingNews.com . 2008-07-22 . 2012-08-16 .
  24. Web site: News . foxsports.com . 2015-07-04 . 2017-01-05.
  25. Web site: 1998 Road America Champ Cars . . 16 August 1998 . 27 April 2022.
  26. Web site: 2024 IMSA SportsCar Weekend - Race Official Results (2 Hours 40 Minutes) . . 3 August 2024 . 4 August 2024.
  27. Web site: American Le Mans Series Road America 2008 . 10 August 2008 . 9 April 2021.
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  29. Web site: 2020 IMSA SportsCar Weekend - Race Results . . 4 August 2020 . 9 April 2021.
  30. Web site: 2023 Road America Indy NXT . . 18 June 2023 . 19 May 2024.
  31. Web site: 2002 Race Results: Road America (Round 4) - Official Results . https://web.archive.org/web/20050317211141/http://www.imsaracing.net/2002/events/roadamerica/Race.pdf . . 7 July 2002 . 17 March 2005 . 5 May 2022 . dead.
  32. Web site: Road America 500 Kilometres 1993 . 11 July 1993 . 17 May 2022.
  33. Web site: 2016 Continental Tire Road Race Showcase - Race Official Results (160') . . 19 August 2016 . 19 May 2024.
  34. Web site: Road America 500 Miles 2001 . 8 July 2001 . 11 June 2022.
  35. Web site: 2023 IMSA SportsCar Weekend - Race Official Results (2 Hours 40 Minutes) . . 9 August 2023 . 10 August 2023.
  36. Web site: FRP Road America SpeedTour FRP Atlantic/F2000/F1000 Feature Race 2 - Provisional . 9 July 2023 . 3 October 2023.
  37. Web site: 2017 Continental Tire Road Race Showcase - Race Results . . 8 August 2017 . 1 May 2021.
  38. Web site: Can-Am Road America 1981 . 26 July 1981 . 5 May 2022.
  39. Web site: 2018 Pro Mazda GP of Road America - Race 1 Lap Report . 22 June 2018 . 19 May 2024.
  40. Web site: 2005 Race Results: Road America - Official Results . https://web.archive.org/web/20061110072551/http://www.imsaracing.net/2003/events/roadamerica05/ALMS_OfficialRace.pdf . . 21 August 2005 . 10 November 2006 . 5 May 2022 . dead.
  41. Web site: 1976 Road America F5000 . . 28 August 1976 . 5 May 2022.
  42. Web site: 2021 IMSA SportsCar Weekend - Race Official Results (2 Hours 40 Minutes) . . 10 August 2021 . 4 February 2023.
  43. Web site: Trans Am Series Presented by Pirelli - Road America - July 6th-8th - TA XGT SGT GT Round 8 - Official Race Results . 8 July 2023 . 21 July 2024.
  44. Web site: 2023 FR Americas Road America - Round 4 Official Race Result . 20 May 2023 . 21 May 2023.
  45. Web site: Can-Am Road America 1973 . 26 August 1973 . 4 February 2023.
  46. Web site: 2012 American Le Mans Series Elkhart Lake . 18 August 2012 . 4 February 2023.
  47. Web site: 2019 IMSA Road Race Showcase - Lamborghini Super Trofeo - Race 2 Official Results (50 Minutes) . . 6 August 2019 . 2 January 2023.
  48. Web site: 2023 Ferrari Challenge North America Trofeo Pirelli - Road America Race 2 - P/P-AM Provisional Results (30 Minutes) . 10 September 2023 . 10 September 2023.
  49. Web site: 2023 USF2000 Discount Tire Grand Prix of Road America - Race 2 Official Results . 18 June 2023 . 19 May 2024.
  50. Web site: 2023 NASCAR Road America Weekend - Porsche Deluxe Carrera Cup North America - Race 2 Official Results (40 Minutes) . . 2 August 2023 . 2 August 2023.
  51. Web site: Road America 200 Kilometres IMSA GTO 1991 . 25 August 1991 . 17 May 2022.
  52. Web site: Road America 500 Miles 1981 . 23 August 1981 . 11 June 2022.
  53. Web site: Can-Am Road America 1980 . 20 July 1980 . 7 February 2023.
  54. Web site: Trans Am Championship Presented by Pirelli - Road America July 7th-9th - The Big Machine Spiked Coolers TA2 Series Round 8 - Official Race Results . 9 July 2023 . 21 July 2024.
  55. Web site: Road America 500 Miles 2000 . 9 July 2000 . 5 May 2022.
  56. Web site: 2023 Road America 180 Race Statistics . 29 July 2023 . 30 July 2023.
  57. Web site: 2024 F4 United States Championship powered by Honda - Road America - F4 Round 2 Race Result . 19 May 2024 . 19 May 2024.
  58. Web site: 2021 Road America NASCAR . . 4 July 2021 . 19 May 2024.
  59. Web site: 2024 PFC Grand Prix of Road America - USF Juniors - Race 2 . 11 August 2024 . 11 August 2024.
  60. Web site: 2023 Road America 120 - IMSA Michelin Pilot Challenge - Race Official Results (2 Hours) . . 9 August 2023 . 10 August 2023.
  61. Web site: 2022 Road America GT America Race 1 - Classification - Final . 21 August 2022 . 22 August 2022.
  62. Web site: 2008 Formula BMW Americas Road America (Race 1) . 8 August 2008 . 17 February 2024.
  63. Web site: Can-Am Rod America 1977 . 24 July 1977 . 4 February 2023.
  64. Web site: Road America IMSA GTS 1992 . 9 August 1992 . 17 May 2022.
  65. Web site: 2024 IMSA SportsCar Weekend - Mustang Challenge - Race 1 Official Results (45 Minutes) . . 7 August 2024 . 11 August 2024.
  66. Web site: 2023 IMSA Sports Car Weekend - Idemitsu Mazda MX-5 Cup Presented by BFGoodrich - Race 1 Official Results (45 Minutes) . . 9 August 2023 . 10 August 2023.
  67. Web site: Trans-Am Road America - Two Five Challenge 1972 . 16 July 1972 . 4 February 2023.
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