Jack Sprague NASCAR Truck Series results at Fontana
| Year | Race # | Start | Finish | Car # | Sponsor | Engine | Owner | Crew Chief | Qualifying Speed | Laps | X Led | Laps Led | Status | Money | Points |
| 1997 | 24 | 2 | 6 | 24 | Quaker State | Chevrolet | Hendrick | | 172.994 | 100 | 1 | 1 | running | 11225 | 150 |
| 1998 | 12 | 12 | 1 | 24 | GMAC Financial Services | Chevrolet | Hendrick | | 169.531 | 100 | 3 | 26 | running | 42775 | 180 |
| 1999 | 25 | 3 | 1 | 24 | GMAC Financial Services | Chevrolet | Hendrick | | 172.861 | 100 | 3 | 6 | running | 43950 | 180 |
| 2000 | 24 | 11 | 4 | 24 | GMAC Financial Services | Chevrolet | Hendrick | | 172.911 | 100 | 0 | 0 | running | 16880 | 160 |
| 2001 | 24 | 6 | 31 | 24 | NetZero Platinum | Chevrolet | Hendrick | | 171.957 | 27 | 2 | 6 | accident | 9490 | 75 |
| 2004 | 20 | 14 | 3 | 16 | Chevy Trucks | Chevrolet | | | 175.871 | 100 | 0 | 0 | running | 28415 | 165 |
| 2005 | 2 | 11 | 22 | 16 | Chevy Trucks | Chevrolet | Fuge | | 176.626 | 99 | 1 | 31 | running | 14190 | 102 |
| 2006 | 2 | 8 | 5 | 60 | Con-way | Toyota | Wyler | | 176.900 | 106 | 1 | 8 | running | 15650 | 160 |
| 2007 | 2 | 7 | 3 | 60 | Con-way Freight | Toyota | Wyler | | 174.596 | 100 | 0 | 0 | running | 29325 | 165 |
| 2008 | 2 | 30 | 22 | 2 | RVs.com | Chevrolet | Harvick | | | 99 | 0 | 0 | running | 11235 | 97 |
