Jack Sprague at Colorado National Speedway
Jack Sprague has made 3 NASCAR Truck Series starts at Colorado National Speedway since 1995, with 0 wins, 2 top-10s and an average finish of 9.3.
Totals at Colorado National Speedway by series
| Series | Starts | Wins | Top 5 | Top 10 | Laps led | Avg finish | Avg start | Best finish |
|---|---|---|---|---|---|---|---|---|
| Truck Series | 3 | 0 | 1 | 2 | 0 | 9.3 | 9.3 | 4 |
Every start at Colorado National Speedway
| Date | Race | Series | Start | Finish | Laps led | Status |
|---|---|---|---|---|---|---|
| July 19, 1997 | 1997 Colorado 250 By Snap-On Tools | Craftsman Truck Series | 21 | 16 | 0 | Running |
| June 1, 1996 | 1996 Colorado 250 | Craftsman Truck Series | 5 | 4 | 0 | Running |
| July 15, 1995 | 1995 Total Petroleum 200 | SuperTruck Series | 2 | 8 | 0 | Running |