Drivers: Colin Birkholz, Randy Murdock
Description: International
Division(s): LT PSPerformance Summary: 2021 R3 Light Pro Stock
Division Champion
Wins: 3 / Top Fives: 7 / Top Tens: 7
| Sauk Rapids, MN S2 | 3rd place | 28 points | Standings: 28/3rd |
| Tomah, WI S1 | 1st place | 30 points | Standings: 58/1st |
| Tomah, WI S2 | 2nd place | 30 points | Standings: 88/1st |
| Lancaster, WI | 1st place | 30 points | Standings: 118/1st |
| Menomonie, WI | 2nd place | 29 points | Standings: 147/1st |
| Norwalk, WI | 1st place | 30 points | Standings: 177/1st |
| Ridgeland, WI | 3rd place | 28 points | Standings: 205/1st |
| 7 Appearances | Avg. Finish: 1.9 | Total Points: 205 | Standings: 1st |