2019 6 Hours of The Glen explained

The 2019 Sahlen's Six Hours of the Glen was an endurance race sanctioned by the International Motor Sports Association (IMSA). The race was held at Watkins Glen International in Watkins Glen, New York, on June 30, 2019. This race was the sixth round of the 2019 WeatherTech SportsCar Championship, as well as the third round of the 2019 Michelin Endurance Cup.

Background

International Motor Sports Association's (IMSA) president Scott Atherton confirmed the race was part of the schedule for the 2019 IMSA SportsCar Championship (IMSA SCC) in August 2018.[1] It was the sixth consecutive year the event was held as part of the WeatherTech SportsCar Championship. The 2019 6 Hours of The Glen was the sixth of twelve sports car races of 2019 by IMSA, and it was the third of four rounds held as part of the Michelin Endurance Cup.[2] The race was held at the eleven-turn 3.45miles Watkins Glen International in Watkins Glen, New York on June 30, 2019.[3]

IMSA released two separate technical bulletins regarding the Balance of Performance for the six-hour race. The first one was released on May 23, 2019, for the GT Le Mans (GTLM) class. This was done to allow IMSA teams who were preparing for the 24 Hours of Le Mans in three weeks time, notably Corvette Racing and Chip Ganassi Racing, to have the beforehand knowledge of the Balance of Performance for the race so they could prepare better. In this bulletin, the BMW M8 GTE received a 12 horsepower increase, as well as a six liter increase in fuel capacity and turbo boost increase.[4] [5] The second technical bulletin was released on June 19, 2019, which regarded the Balance of Performance for the Daytona Prototype International (DPi) and GT Daytona (GTD) classes. In DPi, after winning the previous two events, Team Penske's Acura ARX-05 was given a 15-kilogram weight increase, giving it the same weight as the Nissan DPi. The Cadillac DPi-V.R was given a 1-liter reduction in fuel capacity. In GT Daytona, despite no McLarens participating in the 6 Hour event, the McLaren 720S was given a power increase of 15 horsepower and made 25 kilograms lighter, in addition to a 12-liter fuel capacity increase. These adjustments made the McLaren 720S the lightest car in the class, as well as having the largest fuel capacity.[6] [7]

Before the race, Pipo Derani and Felipe Nasr led the DPi Drivers' Championship with 152 points, ahead of Dane Cameron and Juan Pablo Montoya in second with 147 points.[8] In LMP2, Cameron Cassels and Kyle Masson led the Drivers' Championship with 99 points; the duo held a four-point advantage over Matt McMurry. The GTLM Drivers' Championship was led by Earl Bamber and Laurens Vanthoor with 126 points, 7 points ahead of Antonio García and Jan Magnussen in second followed by Patrick Pilet and Nick Tandy with 117 points in third. With 84 points, Mario Farnbacher and Trent Hindman led the Drivers' Championship, 4 points clear of Frankie Montecalvo and Townsend Bell. Cadillac, Porsche, and Lamborghini were leading their respective Manufacturers' Championships, while Whelen Engineering Racing, Performance Tech Motorsports, Porsche GT Team, and Meyer Shank Racing each led their own Teams' Championships.

Entries

A total of 37 cars took part in the event split across four classes.[9] There were 11 entries in Daytona Prototype international, eight cars in GT Le Mans, 16 in GT Daytona, and just two entrants in the Le Mans Prototype (LMP2) class. In GT Daytona, Sprint-race-only entrants Compass Racing and Lone Star Racing would not be taking part, while endurance-event-only entrants such as Land-Motorsport made their return. Black Swan Racing also returned to the grid after missing the 12 Hours of Sebring due to their team owner Tim Pappas sustaining an injury. As he was still recovering, Marc Miller took his place for The Glen. Joey Hand made a full recovery from suffering symptoms of the flu, and returned to the Chip Ganassi Racing team after being replaced by Sebastien Bourdais for the previous two rounds.

Practice

There were three practice sessions preceding the start of the race on Saturday, two on Friday and one on Saturday. The first session on Friday morning lasted 75 minutes while the second session on Friday afternoon lasted one hour. The third on Saturday morning lasted one hour.[10]

Practice 1

The first practice session took place at 10:25 am ET on Friday and ended with Harry Tincknell topping the charts for Mazda Team Joest, with a lap time of 1:30.690. Hélio Castroneves was second fastest in the No. 7 Acura followed by Dane Cameron in the sister No. 6 Acura Team Penske entry.[11] Gabriel Aubry set the fastest time in LMP2.[12] The GTLM class was topped by the No. 67 Ford Chip Ganassi Racing Ford GT of Richard Westbrook with a time of 1:42.673. Dirk Müller was second fastest in the No. 66 Ford GT followed by Tommy Milner in the No. 4 Corvette. The GTD class was topped by the No. 44 Magnus Racing Lamborghini Huracán GT3 Evo of Andy Lally with a time of 1:45.406. Bill Auberlen in the No. 96 BMW was second fastest followed by Dirk Werner in the No. 540 Black Swan Racing Porsche.[13] The session was red flagged two times. 20 minutes into the session, Chris Miller's No. 84 JDC-Miller Motorsports Cadillac stopped at the inner loop.[14] The final stoppage came when Will Hardeman crashed the No. 19 Moorespeed Audi at the barrier at turn five and caught fire. Hardeman suffered a concussion and the session ended early.[15] After practice, Moorespeed withdrew the No. 19 Audi due to the extensive damage the car received.[16]

ClassTeamDriverTime
1DPi55Mazda Team JoestHarry Tincknell1:30.690_
2DPi7Acura Team PenskeHélio Castroneves1:30.802+0.112
3DPi6Acura Team PenskeDane Cameron1:31.224+0.534
Sources:[17] [18]

Practice 2

The second practice session took place at 3:05 PM ET on Friday and ended with Dane Cameron topping the charts for Acura Team Penske, with a lap time of 1:30.014. Jonathan Bomarito was second fastest in the No. 55 Mazda Team Joest entry followed by Hélio Castroneves in the No. 7 Acura.[19] Matt McMurry set the fastest in LMP2.[20] The GTLM class was topped by the No. 67 Ford Chip Ganassi Racing Ford GT of Richard Westbrook with a time of 1:42.321. Antonio García was second fastest in the No. 3 Corvette followed by Joey Hand in the No. 66 Ford GT.[21] The GTD class was topped by the No. 44 Magnus Racing Lamborghini Huracán GT3 Evo of Spencer Pumpelly with a time of 1:45.835. Scott Hargrove was second fastest in the No. 9 Pfaff Motorsports Porsche followed by Jack Hawksworth in the No. 14 Lexus. The session saw one stoppage when Simon Trummer's No. 84 JDC-Miller Motorsports Cadillac suffered a loss of power and stopped at turn ten.

ClassTeamDriverTime
1DPi6Acura Team PenskeDane Cameron1:30.014_
2DPi55Mazda Team JoestJonathan Bomarito1:30.842+0.828
3DPi7Acura Team PenskeHélio Castroneves1:30.901+0.887
Sources:[22] [23]

Practice 3

The third and final practice session took place at 8:00 am ET and ended with Oliver Jarvis topping the charts for Mazda Team Joest, with a lap time of 1:43.279. Will Owen was second fastest in the No. 50 Juncos Racing Cadillac followed by Renger van der Zande in the No. 10 Konica Minolta Cadillac entry.[24] The GTLM class was topped by the No. 912 Porsche GT Team Porsche 911 RSR of Laurens Vanthoor with a time of 1:54.280. John Edwards was second fastest in the No. 24 BMW followed by Patrick Pilet in the No. 911 Porsche.The GTD class was topped by the No. 14 AIM Vasser Sullivan Lexus RC F GT3 of Jack Hawksworth with a time of 1:57.445. Parker Chase was second fastest in the No. 8 Starworks Motorsport Audi followed by Aaron Telitz in the No. 12 Lexus.[25] Neither of the LMP2 entries set a lap time.[26]

ClassTeamDriverTime
1DPi77Mazda Team JoestOliver Jarvis1:43.279_
2DPi50Juncos RacingWill Owen1:46.738+3.459
3DPi10Konica Minolta CadillacRenger van der Zande1:46.909+3.630
Sources:[27] [28]

Qualifying

Saturday's late morning qualification session was broken into three sessions that lasted 15 minutes each. Cars in GTD were sent out first before those grouped in GTLM and DPi/LMP2 had two separate identically timed sessions. All cars were required to be driven by one participant and the starting order was determined by the competitor's fastest lap.[29] IMSA then arranged the grid so that the DPi, LMP2, and GTLM cars started in front of the GTD field.

The first was for cars in the GTD class. Trent Hindman qualified on pole for the class driving the No. 86 car for Meyer Shank Racing, beating Christina Nielsen in the No. 57 Acura by more than three-tenths of a second. Following in third was Dillon Machavern's No. 96 BMW with the No. 63 Ferrari of Jeff Westphal in fourth.[30] Ricardo Feller completed the top five in the No. 29 Montaplast by Land-Motorsport Audi followed by The No. 9 Pfaff Motorsports Porsche of Zacharie Robichon in sixth position.[31] The No. 12 AIM Vasser Sullivan entry did not participate in the session due to the team changing the engine.[32]

The second session was for cars in the GTLM class. Antonio García qualified on pole for the class driving the No. 3 car for Corvette Racing, beating Richard Westbrook in the No. 67 Ford Chip Ganassi Racing by 0.317 seconds. Joey Hand was third fastest, but lost his fastest lap for violating track limits. As a result, Hand would start from fifth position while Tommy Milner's No. 4 Corvette was promoted to third position followed by John Edwards in the No. 24 BMW in fourth. Connor De Phillippi in the No. 25 BMW Team RLL started from sixth place. The Porsche GT Team entries rounded out the GTLM qualifiers.

The final session of qualifying was for cars in the LMP2 and DPi classes. Oliver Jarvis qualified on pole overall driving the No. 77 car for Mazda Team Joest, beating Dane Cameron in the No. 6 Acura by more than two-tenths of a second. Ricky Taylor qualified the No. 7 Acura Team Penske entry in third position followed by Harry Tincknell's No. 55 Mazda in fourth.[33] Renger van der Zande in the No. 10 Konica Minolta Cadillac entry started from fifth place. Following in sixth was Filipe Albuquerque's No. 5 Mustang Sampling Racing followed by Felipe Nasr in the No. 31 Whelen Engineering Racing Cadillac. Gabriel Aubry qualified on pole in LMP2 driving the No. 52 car PR1/ Mathiasen Motorsports, besting Kyle Masson in the No. 38 Performance Tech Motorsports car.[34]

Qualifying results

Pole positions in each class are indicated in bold and by .

ClassTeamDriverTime
1DPi77 Mazda Team Joest Oliver Jarvis1:29.639_1
2DPi6 Acura Team Penske Dane Cameron1:29.862+0.2232
3DPi7 Acura Team Penske Ricky Taylor1:29.928+0.2893
4DPi55 Mazda Team Joest Harry Tincknell1:29.983+0.3444
5DPi10 Konica Minolta Cadillac Renger van der Zande1:30.758+1.1195
6DPi5 Mustang Sampling Racing Filipe Albuquerque1:31.170+1.5316
7DPi31 Whelen Engineering Racing Felipe Nasr1:31.177+1.5387
8LMP252 PR1/ Mathiasen Motorsports Gabriel Aubry1:31.735+2.09612
9DPi85 JDC-Miller Motorsports Misha Goikhberg1:32.316+2.6778
10DPi84 JDC-Miller Motorsports Simon Trummer1:32.409+2.7709
11LMP238 Performance Tech Motorsports Kyle Masson1:32.459+2.82013
12DPi50 Juncos Racing René Binder1:33.134+3.49510
13DPi54 CORE Autosport Jon Bennett1:33.466+3.82711
14GTLM3 Corvette Racing Antonio García1:40.799+11.16014
15GTLM67 Ford Chip Ganassi Racing Richard Westbrook1:41.116+11.47715
16GTLM4 Corvette Racing Tommy Milner1:41.291+11.65216
17GTLM24 BMW Team RLL John Edwards1:41.301+11.66217
18GTLM66 Ford Chip Ganassi Racing Joey Hand1:41.304+11.66518
19GTLM25 BMW Team RLL Connor De Phillippi1:41.414+11.77519
20GTLM911 Porsche GT Team Nick Tandy1:41.545+11.90621
21GTLM912 Porsche GT Team Laurens Vanthoor1:42.206+12.56720
22GTD86 Meyer Shank Racing with Curb-Agajanian Trent Hindman1:44.978+15.33922
23GTD57 Heinricher Racing w/Meyer Shank Racing Christina Nielsen1:45.295+15.65623
24GTD96 Turner Motorsport Dillon Machavern1:45.506+15.86724
25GTD63 Scuderia Corsa Jeff Westphal1:45.595+15.85625
26GTD29 Montaplast by Land-Motorsport Ricardo Feller1:45.597+15.85826
27GTD9 Pfaff Motorsports Zacharie Robichon1:45.842+16.20327
28GTD33 Mercedes-AMG Team Riley Motorsports Ben Keating1:45.961+16.32228
29GTD14 AIM Vasser Sullivan Richard Heistand1:46.066+16.42729
30GTD540 Black Swan Racing Marco Seefried1:46.100+16.46130
31GTD47 Precision Performance Motorsports Brandon Gdovic1:46.388+16.74931
32GTD48 Paul Miller Racing Ryan Hardwick1:46.620+16.98132
33GTD44 Magnus Racing John Potter1:47.041+17.40233
34GTD8 Starworks Motorsport Parker Chase1:48.041+18.40234
35GTD73 Park Place Motorsports Nicholas Boulle1:48.923+19.28435
36GTD12 AIM Vasser SullivanNoneNo time_37
37GTD19 MoorespeedNoneNo time_36
Sources:[35] [36]

Race

Post-race

With a total of 177 points, Cameron and Montoya's third place finish allowed them to take the lead of the DPi Drivers' Championship while Derani and Nasr dropped to second. Jordan Taylor and Renger van der Zande advanced from fourth to third.[37] The final results of LMP2 kept Cassels and Masson atop the Drivers' Championship, but their advantage was reduced to one point by race winner McMurry. Lux advanced from sixth to fourth. Pilet and Tandy took the lead of the GTLM Drivers' Championship while Bamber and Vanthoor dropped to second. Müller jumped to fourth and being fifth coming into Watkins Glen. With a total of 119 points, Farnbacher and Hindman's victory allowed them to extend their advantage to 16 points while Heistand and Hawksworth took over second position in the GTD Drivers' Championship. Porsche and Lamborghini continued to top their respective Manufacturers' Championships, while Acura took the lead of the DPi Manufactures' Championship. Performance Tech Motorsports, Porsche GT Team, and Meyer Shank Racing kept their respective advantages in their Teams' Championships, while Acura Team Penske took the lead of the DPi Teams Championship with six rounds left in the season.

Race Results

Class winners are denoted in bold and .

PosClassTeamDriversChassisLapsTime/Gap To/Reason Retired
Engine
1DPi55 Mazda Team Joest Jonathan Bomarito
Olivier Pla
Harry Tincknell
Mazda RT24-P2116:00:07.332
Mazda MZ-2.0T 2.0 L Turbo I4
2DPi77 Mazda Team Joest Timo Bernhard
Oliver Jarvis
Tristan Nunez
Mazda RT24-P211+0.353s
Mazda MZ-2.0T 2.0 L Turbo I4
3DPi6 Acura Team Penske Dane Cameron
Juan Pablo Montoya
Acura ARX-05211+11.783s
Acura AR35TT 3.5 L Turbo V6
4DPi10 Konica Minolta Cadillac Jordan Taylor
Renger van der Zande
Cadillac DPi-V.R211+24.837s
Cadillac 5.5 L V8
5DPi7 Acura Team Penske Hélio Castroneves
Ricky Taylor
Acura ARX-05211+38.864s
Acura AR35TT 3.5 L Turbo V6
6DPi5 Mustang Sampling Racing Filipe Albuquerque
João Barbosa
Mike Conway
Cadillac DPi-V.R209+2 laps
Cadillac 5.5 L V8
7DPi31 Whelen Engineering Racing Eric Curran
Pipo Derani
Felipe Nasr
Cadillac DPi-V.R208+3 laps
Cadillac 5.5 L V8
8DPi50 Juncos Racing René Binder
Will Owen
Cadillac DPi-V.R206+5 laps
Cadillac 5.5 L V8
9DPi84 JDC-Miller Motorsports Chris Miller
Stephen Simpson
Simon Trummer
Cadillac DPi-V.R204+7 laps
Cadillac 5.5 L V8
10LMP252 PR1/Mathiasen Motorsports Gabriel Aubry
Eric Lux
Matt McMurry
Oreca 07201+10 laps
Gibson GK428 4.2 L V8
11DPi85 JDC-Miller Motorsports Misha Goikhberg
Juan Piedrahita
Tristan Vautier
Cadillac DPi-V.R199+12 laps
Cadillac 5.5 L V8
12GTLM911 Porsche GT Team Patrick Pilet
Nick Tandy
Porsche 911 RSR195+16 laps
Porsche 4.0 L Flat-6
13GTLM3 Corvette Racing Antonio García
Jan Magnussen
Chevrolet Corvette C7.R195+16 laps
Chevrolet LT5.5 5.5 L V8
14GTLM67 Ford Chip Ganassi Racing Ryan Briscoe
Richard Westbrook
Ford GT194+17 laps
Ford EcoBoost 3.5 L Turbo V6
15GTLM66 Ford Chip Ganassi Racing Joey Hand
Dirk Müller
Ford GT194+17 laps
Ford EcoBoost 3.5 L Turbo V6
16GTLM24 BMW Team RLL John Edwards
Jesse Krohn
BMW M8 GTE194+17 laps
BMW S63 4.0 L Twin-turbo V8
17GTLM912 Porsche GT Team Earl Bamber
Laurens Vanthoor
Porsche 911 RSR194+17 laps
Porsche 4.0 L Flat-6
18GTD86 Meyer Shank Racing with Curb-Agajanian Mario Farnbacher
Trent Hindman
Justin Marks
Acura NSX GT3188+23 laps
Acura 3.5 L Turbo V6
19GTD96 Turner Motorsport Bill Auberlen
Robby Foley
Dillon Machavern
BMW M6 GT3188+23 laps
BMW 4.4 L Turbo V8
20GTD63 Scuderia Corsa Cooper MacNeil
Toni Vilander
Jeff Westphal
Ferrari 488 GT3188+23 laps
Ferrari F154 3.9 L Turbo V8
21GTD57 Heinricher Racing w/Meyer Shank Racing Bia Figueiredo
Katherine Legge
Christina Nielsen
Acura NSX GT3188+23 laps
Acura 3.5 L Turbo V6
22GTD14 AIM Vasser Sullivan Philipp Frommenwiler
Jack Hawksworth
Richard Heistand
Lexus RC F GT3188+23 laps
Lexus 5.0 L V8
23GTD9 Pfaff Motorsports Scott Hargrove
Zacharie Robichon
Porsche 911 GT3 R188+23 laps
Porsche 4.0 L Flat-6
24GTD44 Magnus Racing Andy Lally
John Potter
Spencer Pumpelly
Lamborghini Huracán GT3 Evo188+23 laps
Lamborghini 5.2 L V10
25GTD29 Montaplast by Land-Motorsport Ricardo Feller
Christopher Mies
Daniel Morad
Audi R8 LMS GT3188+23 laps
Audi 5.2 L V10
26GTD12 AIM Vasser Sullivan Townsend Bell
Frankie Montecalvo
Aaron Telitz
Lexus RC F GT3188+23 laps
Lexus 5.0 L V8
27GTD540 Black Swan Racing Marc Miller
Marco Seefried
Dirk Werner
Porsche 911 GT3 R186+25 laps
Porsche 4.0 L Flat-6
28GTD47 Precision Performance Motorsports Jacob Eidson
Brandon Gdovic
Don Yount
Lamborghini Huracán GT3 Evo185+26 laps
Lamborghini 5.2 L V10
29GTD8 Starworks Motorsport Parker Chase
Ryan Dalziel
Mike Skeen
Audi R8 LMS GT3185+26 laps
Audi 5.2 L V10
30LMP238 Performance Tech Motorsports Cameron Cassels
Andrew Evans
Kyle Masson
Oreca 07181+30 laps
Gibson GK428 4.2 L V8
31DNFGTLM25 BMW Team RLL Tom Blomqvist
Connor De Phillippi
BMW M8 GTE159Pit Fire
BMW S63 4.0 L Twin-turbo V8
32DNFDPi54 CORE Autosport Jon Bennett
Colin Braun
Romain Dumas
Nissan DPi111Gearbox
Nissan VR38DETT 3.8 L Turbo V6
33DNFGTD73 Park Place Motorsports Nicholas Boulle
Patrick Lindsey
Patrick Long
Porsche 911 GT3 R86Engine
Porsche 4.0 L Flat-6
34DNFGTD48 Paul Miller Racing Ryan Hardwick
Bryan Sellers
Lamborghini Huracán GT3 Evo68Lost Power
Lamborghini 5.2 L V10
35DNFGTLM4 Corvette Racing Oliver Gavin
Tommy Milner
Chevrolet Corvette C7.R0Crash
Chevrolet LT5.5 5.5 L V8
36DNFGTD33 Mercedes-AMG Team Riley Motorsports Jeroen Bleekemolen
Felipe Fraga
Ben Keating
Mercedes-AMG GT30Crash
Mercedes-AMG M159 6.2 L V8
--GTD19 Moorespeed Andrew Davis
Will Hardeman
Alex Riberas
Audi R8 LMS GT3--Did not start
Audi 5.2 L V10
Sources:[38] [39]

Standings after the race

+DPi Drivers' Championship standings+/–DriverPoints
1 1 Dane Cameron
Juan Pablo Montoya
177
2 1 Pipo Derani
Felipe Nasr
176
3 Hélio Castroneves
Ricky Taylor
172
4 1 Jordan Taylor
Renger van der Zande
163
5 1 Filipe Albuquerque
João Barbosa
162
Source:
+LMP2 Drivers' Championship standings+/–DriverPoints
1 Cameron Cassels
Kyle Masson
131
2 Matt McMurry130
3 Gabriel Aubry95
4 2 Eric Lux70
5 Andrew Evans67
Source:
+GTLM Drivers' Championship standings+/–DriverPoints
1 2 Patrick Pilet
Nick Tandy
152
2 1 Earl Bamber
Laurens Vanthoor
151
3 1 Antonio García
Jan Magnussen
151
4 1 Dirk Müller136
5 1 Connor De Phillippi135
Source:
+GTD Drivers' Championship standings+/–DriverPoints
1 Mario Farnbacher
Trent Hindman
119
2 1 Richard Heistand
Jack Hawksworth
103
3 1 Frankie Montecalvo
Townsend Bell
102
4 1 Andy Lally
John Potter
100
5 1 Patrick Long95
Source:
+DPi Teams' Championship standings+/–TeamPoints
1 1 #6 Acura Team Penske177
2 1 #31 Whelen Engineering Racing176
3 #7 Acura Team Penske172
4 1 #10 Konica Minolta Cadillac163
5 1 #5 Mustang Sampling Racing162
Source:
+LMP2 Teams' Championship standings+/–TeamPoints
1 #38 Performance Tech Motorsports131
2 #52 PR1/Mathiasen Motorsports130
3 #18 DragonSpeed35
4 #81 DragonSpeed30
Source:
+GTLM Teams' Championship standings+/–TeamPoints
1 2 #911 Porsche GT Team152
2 1 #912 Porsche GT Team151
3 1 #3 Corvette Racing151
4 1 #66 Ford Chip Ganassi Racing136
5 1 #25 BMW Team RLL135
Source:
+GTD Teams' Championship standings+/–TeamPoints
1 #86 Meyer-Shank Racing with Curb Agajanian119
2 1 #14 AIM Vasser Sullivan103
3 1 #12 AIM Vasser Sullivan102
4 1 #44 Magnus Racing100
5 1 #73 Park Place Motorsports95
Source:
+DPi Manufacturers' Championship standings+/–ManufacturerPoints
1 1 Acura198
2 1 Cadillac197
3 Mazda181
4 Nissan174
Source:
+GTLM Manufacturers' Championship standings+/–ManufacturerPoints
1 Porsche170
2 1 Chevrolet152
3 1 BMW149
4 Ford148
5 Ferrari32
Source:
+GTD Manufacturers' Championship standings+/–ManufacturerPoints
1 Lamborghini125
2 2 Acura120
3 1 Lexus119
4 1 Ferrari111
5 2 Audi110
Source:

Notes and References

  1. Web site: Klein . Jamie . August 4, 2018 . IMSA reveals largely unchanged 2019 schedule . July 26, 2023 . motorsport.com.
  2. Web site: Pruett . Marshall . August 3, 2018 . IMSA releases 2019 schedule . July 26, 2023 . racer.com.
  3. Web site: August 4, 2018 . 2019 IMSA Schedule Released . July 26, 2023 . dailysportscar.com.
  4. Web site: BMWs Gets Power Increase for Watkins Glen. Dagys. John. 23 May 2019. sportscar365.com. John Dagys Media. 23 June 2019.
  5. Web site: IMSA TECHNICAL BULLETIN IWSC #19-25. 22 May 2019. 23 June 2019.
  6. Web site: Acura DPis Hit With Weight Increase for Watkins Glen. Dagys. John. 19 June 2019. sportscar365. John Dagys Media. 23 June 2019.
  7. Web site: IMSA TECHNICAL BULLETIN IWSC #19-28. 19 June 2019. 23 June 2019.
  8. Web site: June 4, 2019 . 00_Championship Points - Official.pdf . November 7, 2023 . results.imsa.com.
  9. Web site: Black Swan Returns; 37 Entries for The Glen. Dagys. John. 19 June 2019. sportscar365.com. John Dagys Media. 23 June 2019.
  10. Web site: 2019 IMSA Official Schedule and SR WGI 061919 V1 . November 7, 2023 . results.imsa.com/noticeBoard.php.
  11. Web site: Dagys . John . June 28, 2019 . Tincknell Quickest in Opening Practice at The Glen . November 18, 2023 . sportscar365.com.
  12. Web site: O'Malley . J.J. . June 28, 2019 . Tincknell puts Mazda on top in opening Watkins Glen IMSA practice . November 18, 2023 . racer.com.
  13. Web site: Malsher-Lopez . David . June 29, 2019 . Watkins Glen IMSA: Tincknell puts Mazda top in first practice . November 18, 2023 . motorsport.com.
  14. Web site: May 31, 2019 . Derani speeds through opening Detroit GP practice . November 16, 2023 . racer.com.
  15. Web site: Allaway . Phil . June 28, 2019 . Dane Cameron, Harry Tincknell Fastest in Watkins Glen WeatherTech Practices . November 18, 2023 . frontstretch.com.
  16. Web site: Dagys . John . June 28, 2019 . Moorespeed Audi Withdrawn After Heavy FP1 Crash . November 18, 2023 . sportscar365.com.
  17. Web site: June 28, 2019 . 03_Results_Practice 1.PDF . November 18, 2023 . results.imsa.com.
  18. Web site: June 28, 2019 . 06_Fastest Lap By Driver_Practice 1.PDF . November 18, 2023 . results.imsa.com.
  19. Web site: Dagys . John . June 28, 2019 . Cameron, Acura Team Penske Quickest on Friday at The Glen . November 18, 2023 . sportscar365.com.
  20. Web site: O'Malley . J.J. . June 28, 2019 . Acura, Ford lead second Glen practice . November 18, 2023 . racer.com.
  21. Web site: Malsher-Lopez . David . June 29, 2019 . Watkins Glen IMSA: Cameron scorches to the top in FP2 . November 18, 2023 . motorsport.com.
  22. Web site: June 28, 2019 . 03_Results_Practice 2.PDF . November 18, 2023 . results.imsa.com.
  23. Web site: June 28, 2019 . 06_Fastest Lap By Driver_Practice 2.PDF . November 18, 2023 . results.imsa.com.
  24. Web site: O'Malley . J.J. . June 29, 2019 . Jarvis fastest in wet final Watkins Glen practice . November 18, 2023 . racer.com.
  25. Web site: Malsher-Lopez . David . June 29, 2019 . Watkins Glen IMSA: Mazda leads wet-but-drying practice . November 18, 2023 . motorsport.com.
  26. Web site: Dagys . John . June 29, 2019 . Jarvis Quickest in Mixed-Condition Practice 3 . November 18, 2023 . sportscar365.com.
  27. Web site: June 29, 2019 . 03_Results_Practice 3.PDF . November 18, 2023 . results.imsa.com.
  28. Web site: June 29, 2019 . 06_Fastest Lap By Driver_Practice 3.PDF . November 18, 2023 . results.imsa.com.
  29. Web site: 2019 IMSA SPORTING REGULATIONS and SERIES SUPPLEMENTARY REGULATIONS . dead . https://web.archive.org/web/20200205235113/https://competitors.imsa.com/sites/default/files/reults/downlods/2019_imsa_sporting_regulations_and_ssr_iwsc_blackline_082119.pdf . February 5, 2020 . 2023-11-19.
  30. Web site: Dagys . John . June 29, 2019 . Garcia Takes GTLM Pole at The Glen . November 18, 2023 . sportscar365.com.
  31. Web site: Malsher-Lopez . David . June 29, 2019 . Watkins Glen IMSA: Jarvis lands brilliant pole for Mazda . November 18, 2023 . motorsport.com.
  32. Web site: O'Malley . J.J. . June 29, 2019 . Jarvis puts Mazda on Watkins Glen pole . November 18, 2023 . racer.com.
  33. Web site: Dagys . John . June 29, 2019 . Jarvis Scores Third Pole of Season in Record-Breaking Lap . November 18, 2023 . sportscar365.com.
  34. Web site: Allaway . Phil . June 29, 2019 . Oliver Jarvis Wins Sahlen's Six Hours at the Glen Pole . November 18, 2023 . frontstretch.com.
  35. Web site: 27-30 June 2019 Sahlen's Six Hours of the Glen Results -- Qualifying.PDF. 29 June 2019. 11 July 2019.
  36. Web site: June 30, 2019 . 00_Grid_Race_Official.PDF . November 7, 2023 . results.imsa.com.
  37. Web site: July 2, 2019 . 00_Championship Points - Official.pdf . November 7, 2023 . results.imsa.com.
  38. Web site: July 2, 2019 . 03_Results_Race_Official.PDF . November 7, 2023 . results.imsa.com.
  39. Web site: 2019 Sahlen's Six Hours of The Glen . November 7, 2023 . racing-reference.info.