| Race details | |||
|---|---|---|---|
| Race 28 of 29 in the 1991 NASCAR Winston Cup Series | |||
 The 1991 Pyroil 500 program cover. | |||
| Date | November 3, 1991 | ||
| Official name | 4th Annual Pyroil 500 | ||
| Location | Avondale, Arizona, Phoenix International Raceway | ||
| Course | Permanent racing facility | ||
| Course length | 1 miles (1.6 km) | ||
| Distance | 312 laps, 312 mi (502.115 km) | ||
| Scheduled distance | 312 laps, 312 mi (502.115 km) | ||
| Average speed | 95.746 miles per hour (154.088 km/h) | ||
| Pole position | |||
| Driver | Junior Johnson & Associates | ||
| Time | 28.220 | ||
| Most laps led | |||
| Driver | Davey Allison | Robert Yates Racing | |
| Laps | 162 | ||
| Winner | |||
| No. 28 | Davey Allison | Robert Yates Racing | |
| Television in the United States | |||
| Network | TNN | ||
| Announcers | Mike Joy, Buddy Baker, Neil Bonnett | ||
| Radio in the United States | |||
| Radio | Motor Racing Network | ||
The 1991 Pyroil 500 was the 28th and penultimate stock car race of the 1991 NASCAR Winston Cup Series season, the ninth and the final race of the 1991 NASCAR Winston West Series season, and the fourth iteration of the event. The race was held on Sunday, November 3, 1991, in Avondale, Arizona at Phoenix International Raceway, a 1-mile (1.6 km) permanent low-banked tri-oval race track. The race took the scheduled 312 laps to complete. At race's end, Robert Yates Racing driver Davey Allison would manage to dominate the late stages of the race, leading 162 of the final 166 laps of the race to take his 13th career NASCAR Winston Cup Series victory and his fifth and final victory of the season.[1][2][3] To fill out the top three, owner-driver Darrell Waltrip and Junior Johnson & Associates driver Sterling Marlin would finish second and third, respectively.
In the driver's championship for the 1991 NASCAR Winston Cup Series, Richard Childress Racing driver Dale Earnhardt was considered the extremely heavy favorite to win the championship, only needing to start the next race, the 1991 Hardee's 500, to win the championship.[4][5]
- ^ Higgins, Tom (November 4, 1991). "Allison overtakes Rudd, field in Phoenix (Part 1)". The Charlotte Observer. p. 11. Retrieved March 11, 2023 – via Newspapers.com.
- ^ Higgins, Tom (November 4, 1991). "Allison overtakes Rudd, field in Phoenix (Part 2)". The Charlotte Observer. p. 15. Retrieved March 11, 2023 – via Newspapers.com.
- ^ Harris, Mike (November 4, 1991). "Earnhardt has title within reach". The York Dispatch. p. 17. Retrieved March 11, 2023 – via Newspapers.com.
- ^ Higgins, Tom (November 4, 1991). "Earnhardt a start from title (Part 1)". The Charlotte Observer. p. 11. Retrieved March 11, 2023 – via Newspapers.com.
- ^ Higgins, Tom (November 4, 1991). "Earnhardt a start from title (Part 2)". The Charlotte Observer. p. 15. Retrieved March 11, 2023 – via Newspapers.com.
