IROC XVII was the seventeenth year of IROC competition, which took place in 1993. It was the fourth and final year the Dodge Daytona was used in competition, and continued the format introduced in IROC VIII. Race one took place on the Daytona International Speedway, race two took place at Darlington Raceway, race three was held at Talladega Superspeedway, and race four ran at Michigan International Speedway. Davey Allison won the series championship posthumously after dying in a helicopter accident at the Talladega Superspeedway. With only one race remaining, Terry Labonte drove the final race, and the points from that race, applied to Allison's previous total, were enough to secure the championship. The winnings of $175,000 were placed in a trust fund for Allison's children.
The roster of drivers and final points standings were as follows:
Friday, February 12, 1993
one *: Bonus points for leading the most laps.<br />two **: Bonus points for leading the 2nd most laps.<br />three ***: Bonus points for leading the 3rd most laps.
Average speed: 181.726 mph<br />Cautions: 1<br />Margin of victory: 1 car length<br />Lead changes: 10
Saturday, March 27, 1993
one *: Bonus points for leading the most laps.<br />two **: Bonus points for leading the 2nd most laps.<br />three ***: Bonus points for leading the 3rd most laps.
Average speed: 142.47 mph<br />Cautions: 3<br />Margin of victory: .63 sec<br />Lead changes: 2
Cautions
Lap Leaders
Saturday May 1, 1993
one *: Bonus points for leading the most laps.<br />two **: Bonus points for leading the 2nd most laps.<br />three ***: Bonus points for leading the 3rd most laps.
Average speed: 190.716 mph<br />Cautions: n/a<br />Margin of victory: .25 cl<br />Lead changes: 18
Saturday, July 31, 1993
one *: Bonus points for leading the most laps.<br />two **: Bonus points for leading the 2nd most laps.<br />three ***: Bonus points for leading the 3rd most laps.
Average speed: 159.017 mph<br />Cautions: none<br />Margin of victory: 0.41 sec<br />Lead changes: 7