| Type: | NAS |
| Scheduled Km: | 644.542 |
| Pole Driver: | Tony Stewart |
| Most Driver: | Tony Stewart |
| Pole Team: | Joe Gibbs Racing |
| Network: | NBC |
| Most Laps: | 80 |
| Most Team: | Joe Gibbs Racing |
| First Driver: | Ryan Newman |
| Car: | 12 |
| First Team: | Penske Racing South |
| Announcers: | Allen Bestwick, Benny Parsons, Wally Dallenbach Jr. |
| Radio: | Motor Racing Network |
| Attendance: | 85,000 |
| Avg: | 134.059mph |
| Distance Km: | 644.542 |
| Location: | Joliet, Illinois, Chicagoland Speedway |
| Course Km: | 2.41 |
| Distance Laps: | 267 |
| Scheduled Laps: | 267 |
| Scheduled Mi: | 400.5 |
| Course Mi: | 1.5 |
| Official Name: | 3rd Annual Tropicana 400 |
| Season No: | 36 |
| Race No: | 18 |
| Date: | July 13 |
| Race Name: | Tropicana 400 |
| Year: | 2003 |
| Pole Time: | 29.223 |
| Distance Mi: | 400.5 |
| Caption: | The 2003 Tropicana 400 program cover. |
The 2003 Tropicana 400 was the stock car race of the 2003 NASCAR Winston Cup Series season and the third iteration of the event. The race was held on Sunday, July 13, 2003, in Joliet, Illinois, at Chicagoland Speedway, a 1.5 miles (2.41 km) tri-oval speedway. The race took the scheduled 267 laps to complete. At race's end, Penske Racing South driver Ryan Newman would stretch out his fuel mileage well enough to coast to the line and win his fourth career NASCAR Winston Cup Series win and his third of the season.[1] To fill out the podium, Tony Stewart of Joe Gibbs Racing and Jimmie Johnson of Hendrick Motorsports would finish second and third, respectively.
Chicagoland Speedway is a 1.5 miles (2.41 km) tri-oval speedway in Joliet, Illinois, southwest of Chicago. The speedway opened in 2001 and currently hosts NASCAR racing. Until 2011, the speedway also hosted the IndyCar Series, recording numerous close finishes including the closest finish in IndyCar history. The speedway is owned and operated by International Speedway Corporation and located adjacent to Route 66 Raceway.
The first practice session was held on Friday, July 11, at 11:20 AM CST, and would last for 2 hours.[2] Jimmie Johnson of Hendrick Motorsports would set the fastest time in the session, with a lap of 29.324 and an average speed of 184.15mph.[3]
| Pos. | Driver | Team | Make | Time | Speed | ||
|---|---|---|---|---|---|---|---|
| 1 | 48 | Jimmie Johnson | Hendrick Motorsports | Chevrolet | 29.324 | 184.150 | |
| 2 | 24 | Jeff Gordon | Hendrick Motorsports | Chevrolet | 29.376 | 183.824 | |
| 3 | 20 | Tony Stewart | Joe Gibbs Racing | Chevrolet | 29.404 | 183.648 | |
| Full first practice results | |||||||
The second practice session was held on Saturday, July 12, at 9:30 AM CST, and would last for 45 minutes.[4] Tony Stewart of Joe Gibbs Racing would set the fastest time in the session, with a lap of 30.242 and an average speed of 178.56mph.[5]
| Pos. | Driver | Team | Make | Time | Speed | ||
|---|---|---|---|---|---|---|---|
| 1 | 20 | Tony Stewart | Joe Gibbs Racing | Chevrolet | 30.242 | 178.560 | |
| 2 | 12 | Ryan Newman | Penske Racing South | Dodge | 30.255 | 178.483 | |
| 3 | 40 | Sterling Marlin | Chip Ganassi Racing | Dodge | 30.310 | 178.159 | |
| Full second practice results | |||||||
The third and final practice session, sometimes referred to as Happy Hour, was held on Saturday, July 12, at 11:10 AM CST, and would last for 45 minutes.[6] Jimmie Johnson of Hendrick Motorsports would set the fastest time in the session, with a lap of 30.231 and an average speed of 178.625mph.[7]
| Pos. | Driver | Team | Make | Time | Speed | ||
|---|---|---|---|---|---|---|---|
| 1 | 48 | Jimmie Johnson | Hendrick Motorsports | Chevrolet | 30.231 | 178.625 | |
| 2 | 12 | Ryan Newman | Penske Racing South | Dodge | 30.353 | 177.907 | |
| 3 | 20 | Tony Stewart | Joe Gibbs Racing | Chevrolet | 30.405 | 177.602 | |
| Full Happy Hour practice results | |||||||
Qualifying was held on Friday, July 11, at 3:05 PM CST. Each driver would have two laps to set a fastest time; the fastest of the two would count as their official qualifying lap. The session would commence after a near two-hour rain delay.[8] Positions 1-36 would be decided on time, while positions 37-43 would be based on provisionals. Six spots are awarded by the use of provisionals based on owner's points. The seventh is awarded to a past champion who has not otherwise qualified for the race. If no past champ needs the provisional, the next team in the owner points will be awarded a provisional.[9]
Tony Stewart of Joe Gibbs Racing would win the pole, setting a time of 29.223 and an average speed of 184.786mph.[10]
Jason Keller would be the only driver to fail to qualify.