Jason Leffler NASCAR Truck Series statistics by track
| Track | Starts | Poles | Wins | Top 5s | Top 10s | Avg. Start | Avg. Finish | Races Led | Times Led | Laps Led | Avg. % Led | Laps |
| Bristol | 1 | 0 | 0 | 0 | 1 | 17.0000 | 9.0000 | 0 | 0 | 0 | 0.000000 | 200 |
| Charlotte | 2 | 0 | 0 | 1 | 1 | 3.5000 | 12.5000 | 1 | 1 | 10 | 3.675000 | 268 |
| Chicagoland | 1 | 0 | 0 | 0 | 1 | 5.0000 | 8.0000 | 0 | 0 | 0 | 0.000000 | 150 |
| Darlington | 3 | 1 | 0 | 0 | 1 | 3.6667 | 20.0000 | 2 | 3 | 14 | 3.173333 | 399 |
| Daytona | 3 | 1 | 0 | 0 | 0 | 4.0000 | 25.6667 | 2 | 3 | 7 | 2.313333 | 158 |
| Dover | 2 | 0 | 1 | 1 | 2 | 6.5000 | 5.0000 | 2 | 2 | 83 | 20.750000 | 399 |
| Fontana | 1 | 0 | 0 | 1 | 1 | 8.0000 | 2.0000 | 1 | 1 | 9 | 9.000000 | 100 |
| Gateway | 2 | 0 | 0 | 2 | 2 | 6.5000 | 2.0000 | 1 | 2 | 42 | 13.125000 | 320 |
| Homestead | 3 | 0 | 0 | 2 | 2 | 13.6667 | 9.0000 | 0 | 0 | 0 | 0.000000 | 410 |
| Iowa | 1 | 0 | 0 | 0 | 1 | 9.0000 | 6.0000 | 0 | 0 | 0 | 0.000000 | 200 |
| IRP | 3 | 0 | 0 | 1 | 1 | 3.6667 | 15.3333 | 2 | 2 | 49 | 8.166667 | 562 |
| Kansas | 3 | 1 | 0 | 1 | 2 | 3.0000 | 9.6667 | 3 | 5 | 41 | 8.180000 | 499 |
| Kentucky | 3 | 1 | 0 | 2 | 3 | 7.6667 | 6.0000 | 2 | 4 | 38 | 8.443333 | 450 |
| Las Vegas | 1 | 0 | 0 | 1 | 1 | 7.0000 | 5.0000 | 0 | 0 | 0 | 0.000000 | 146 |
| Loudon | 1 | 1 | 0 | 0 | 0 | 1.0000 | 27.0000 | 1 | 3 | 53 | 25.600000 | 169 |
| Martinsville | 4 | 0 | 0 | 0 | 2 | 11.7500 | 12.0000 | 1 | 1 | 23 | 2.300000 | 949 |
| Memphis | 2 | 1 | 0 | 1 | 2 | 4.0000 | 5.0000 | 1 | 1 | 11 | 2.750000 | 400 |
| Mesa Marin | 1 | 0 | 0 | 0 | 1 | 30.0000 | 7.0000 | 1 | 1 | 14 | 5.490000 | 255 |
| Michigan | 2 | 1 | 0 | 2 | 2 | 4.0000 | 3.0000 | 1 | 1 | 6 | 3.000000 | 200 |
| Milwaukee | 3 | 0 | 0 | 2 | 2 | 15.3333 | 11.0000 | 2 | 4 | 81 | 13.393333 | 433 |
| Nashville (IRL) | 2 | 0 | 0 | 0 | 0 | 5.5000 | 26.0000 | 1 | 1 | 7 | 2.335000 | 256 |
| Phoenix | 2 | 0 | 0 | 1 | 1 | 6.0000 | 10.0000 | 0 | 0 | 0 | 0.000000 | 301 |
| Pikes Peak | 1 | 1 | 0 | 1 | 1 | 1.0000 | 2.0000 | 1 | 2 | 95 | 47.500000 | 200 |
| Richmond | 1 | 1 | 0 | 0 | 0 | 1.0000 | 12.0000 | 1 | 1 | 85 | 42.500000 | 199 |
| Rockingham | 1 | 0 | 0 | 0 | 0 | 4.0000 | 34.0000 | 0 | 0 | 0 | 0.000000 | 19 |
| South Boston | 1 | 0 | 0 | 0 | 1 | 7.0000 | 9.0000 | 0 | 0 | 0 | 0.000000 | 257 |
| Talladega | 1 | 0 | 0 | 1 | 1 | 9.0000 | 4.0000 | 0 | 0 | 0 | 0.000000 | 94 |
| Texas | 5 | 1 | 0 | 0 | 3 | 9.0000 | 15.4000 | 1 | 1 | 45 | 5.390000 | 625 |
| Total | 56 | 10 | 1 | 20 | 35 | 7.4286 | 11.9107 | 27 | 39 | 713 | 6.937857 | 8618 |