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2005 NASCAR Camping World Series, West
| 01/30 | Phoenix International Raceway | 7 | 3 | 100/100 | 8,475 | Running |
| 04/09 | Mesa Marin Raceway | 13 | 13 | 149/150 | 1,563 | Running |
| 07/23 | Toyota Speedway at Irwindale | 23 | 25 | 59/150 | 1,263 | Accident |
| 07/30 | Evergreen Speedway | 10 | 12 | 196/200 | 1,767 | Running |
| 08/13 | Stockton 99 Speedway | 14 | 13 | 202/206 | 1,666 | Running |
| All Events | | Total Races: | 5 | | Wins: | 0 (0%) | | Top 5: | 1 (20%) | | Top 10: | 1 (20%) | | Average Finish: | 13.2 | | Total Laps/Poss.: | 706/806 (87.6%) | | Total Miles/Poss.: | 381.12/430.7 (88.5%) |
| Superspeedway Events | | Total Races: | 1 | | Wins: | 0 (0%) | | Top 5: | 1 (100%) | | Top 10: | 1 (100%) | | Average Finish: | 3 | | Total Laps/Poss.: | 100/100 (100%) | | Total Miles/Poss.: | 100/100 (100%) |
| | Short Track Events | | Total Races: | 4 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 0 (0%) | | Average Finish: | 15.8 | | Total Laps/Poss.: | 606/706 (85.8%) | | Total Miles/Poss.: | 281.1/330.7 (85%) |
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: Jason Jefferson Driver Card 2004 NASCAR Camping World Series, West
| 05/01 | Auto Club Speedway | 12 | 15 | 97/100 | 3,888 | Running |
| 07/17 | Evergreen Speedway | 7 | 10 | 199/200 | 2,116 | Running |
| 10/17 | Mesa Marin Raceway | 13 | 17 | 88/150 | 1,125 | Rear End |
| All Events | | Total Races: | 3 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (33.3%) | | Average Finish: | 14 | | Total Laps/Poss.: | 384/450 (85.3%) | | Total Miles/Poss.: | 366.55/404.2 (90.7%) |
| Superspeedway Events | | Total Races: | 1 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 0 (0%) | | Average Finish: | 15 | | Total Laps/Poss.: | 97/100 (97%) | | Total Miles/Poss.: | 194/200 (97%) |
| | Short Track Events | | Total Races: | 2 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (50%) | | Average Finish: | 13.5 | | Total Laps/Poss.: | 287/350 (82%) | | Total Miles/Poss.: | 172.6/204.2 (84.5%) |
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: Jason Jefferson Driver Card 2003 NASCAR Camping World Series, West
| 06/21 | Tri-City Raceway | 6 | 1 | 150/150 | 5,350 | Running |
| 06/28 | Evergreen Speedway | 6 | 5 | 200/200 | 3,017 | Running |
| 10/05 | Phoenix International Raceway | 13 | 11 | 148/150 | 2,294 | Running |
| All Events | | Total Races: | 3 | | Wins: | 1 (33.3%) | | Top 5: | 2 (66.7%) | | Top 10: | 2 (66.7%) | | Average Finish: | 5.67 | | Total Laps/Poss.: | 498/500 (99.6%) | | Total Miles/Poss.: | 352.2/354.2 (99.4%) |
| Superspeedway Events | | Total Races: | 1 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 0 (0%) | | Average Finish: | 11 | | Total Laps/Poss.: | 148/150 (98.7%) | | Total Miles/Poss.: | 148/150 (98.7%) |
| | Short Track Events | | Total Races: | 2 | | Wins: | 1 (50%) | | Top 5: | 2 (100%) | | Top 10: | 2 (100%) | | Average Finish: | 3 | | Total Laps/Poss.: | 350/350 (100%) | | Total Miles/Poss.: | 204.2/204.2 (100%) |
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: Jason Jefferson Driver Card
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