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2008 NASCAR Camping World Series, West
| 03/29 | All American Speedway | 17 | 11 | 153/999 | 1,650 | Running |
| 04/10 | Phoenix International Raceway | 7 | 3 | 150/150 | 8,000 | Running |
| 04/19 | Thunderhill Raceway | 11 | 14 | 150/150 | 1,500 | Running |
| 05/18 | Iowa Speedway | 28 | 10 | 199/200 | 1,675 | Running |
| 06/07 | Colorado National Speedway | 12 | 17 | 146/150 | 1,775 | Running |
| 06/21 | Infineon Raceway | 15 | 29 | 62/64 | 2,175 | Running |
| 07/04 | Toyota Speedway at Irwindale | 16 | 25 | 185/200 | 1,570 | Accident |
| 07/11 | Douglas County Speedway | 15 | 16 | 102/150 | 2,475 | Engine |
| 07/26 | Evergreen Speedway | 2 | 4 | 150/150 | 3,236 | Running |
| 08/02 | Miller Motorsports Park | 6 | 6 | 44/44 | 5,000 | Running |
| 08/16 | Toyota Speedway at Irwindale | 15 | 16 | 198/200 | 1,675 | Running |
| 09/13 | Altamont Motorsports Park | 22 | 18 | 196/200 | 2,000 | Running` |
| All Events | | Total Races: | 12 | | Wins: | 0 (0%) | | Top 5: | 2 (16.7%) | | Top 10: | 4 (33.3%) | | Average Finish: | 14.08 | | Total Laps/Poss.: | 1735/2657 (65.3%) | | Total Miles/Poss.: | 1128.44/1380.71 (81.7%) |
| Superspeedway Events | | Total Races: | 1 | | Wins: | 0 (0%) | | Top 5: | 1 (100%) | | Top 10: | 1 (100%) | | Average Finish: | 3 | | Total Laps/Poss.: | 150/150 (100%) | | Total Miles/Poss.: | 150/150 (100%) |
| | Short Track Events | | Total Races: | 8 | | Wins: | 0 (0%) | | Top 5: | 1 (12.5%) | | Top 10: | 1 (12.5%) | | Average Finish: | 15.1 | | Total Laps/Poss.: | 1280/2199 (58.2%) | | Total Miles/Poss.: | 586.7/834.15 (70.3%) |
| Road Course Events | | Total Races: | 2 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (50%) | | Average Finish: | 17.5 | | Total Laps/Poss.: | 106/108 (98.1%) | | Total Miles/Poss.: | 217.7/221.56 (98.2%) |
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: Jeff Jefferson Driver Card 2006 NASCAR Camping World Series, West
| 07/29 | Evergreen Speedway | 5 | 4 | 250/250 | 3,866 | Running |
| All Events | | Total Races: | 1 | | Wins: | 0 (0%) | | Top 5: | 1 (100%) | | Top 10: | 1 (100%) | | Average Finish: | 4 | | Total Laps/Poss.: | 250/250 (100%) | | Total Miles/Poss.: | 161.5/161.5 (100%) |
| | Short Track Events | | Total Races: | 1 | | Wins: | 0 (0%) | | Top 5: | 1 (100%) | | Top 10: | 1 (100%) | | Average Finish: | 4 | | Total Laps/Poss.: | 250/250 (100%) | | Total Miles/Poss.: | 161.5/161.5 (100%) |
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: Jeff Jefferson Driver Card 2004 NASCAR Camping World Series, West
| 07/17 | Evergreen Speedway | 9 | 2 | 200/200 | 6,066 | Running |
| All Events | | Total Races: | 1 | | Wins: | 0 (0%) | | Top 5: | 1 (100%) | | Top 10: | 1 (100%) | | Average Finish: | 2 | | Total Laps/Poss.: | 200/200 (100%) | | Total Miles/Poss.: | 129.2/129.2 (100%) |
| | Short Track Events | | Total Races: | 1 | | Wins: | 0 (0%) | | Top 5: | 1 (100%) | | Top 10: | 1 (100%) | | Average Finish: | 2 | | Total Laps/Poss.: | 200/200 (100%) | | Total Miles/Poss.: | 129.2/129.2 (100%) |
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: Jeff Jefferson Driver Card 2003 NASCAR Camping World Series, West
| 06/21 | Tri-City Raceway | 2 | 5 | 150/150 | 2,633 | Running |
| 06/28 | Evergreen Speedway | 8 | 4 | 200/200 | 3,967 | Running |
| All Events | | Total Races: | 2 | | Wins: | 0 (0%) | | Top 5: | 2 (100%) | | Top 10: | 2 (100%) | | Average Finish: | 4.5 | | Total Laps/Poss.: | 350/350 (100%) | | Total Miles/Poss.: | 204.2/204.2 (100%) |
| | Short Track Events | | Total Races: | 2 | | Wins: | 0 (0%) | | Top 5: | 2 (100%) | | Top 10: | 2 (100%) | | Average Finish: | 4.5 | | Total Laps/Poss.: | 350/350 (100%) | | Total Miles/Poss.: | 204.2/204.2 (100%) |
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: Jeff Jefferson Driver Card 2002 NASCAR Camping World Series, West
| 02/02 | Phoenix International Raceway | 9 | 20 | 129/150 | 1,650 | Rear End |
| 04/13 | The Bullring at Las Vegas Motor Speedway | 9 | 8 | 222/222 | 1,500 | Running |
| 04/27 | Auto Club Speedway | 11 | 21 | 19/91 | 2,450 | Engine |
| 06/01 | Kansas Speedway | 17 | 18 | 25/100 | 3,126 | Accident |
| 06/29 | Evergreen Speedway | 5 | 16 | 102/200 | 1,750 | Accident |
| All Events | | Total Races: | 5 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (20%) | | Average Finish: | 16.6 | | Total Laps/Poss.: | 497/763 (65.1%) | | Total Miles/Poss.: | 353.64/694.45 (50.9%) |
| Superspeedway Events | | Total Races: | 3 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 0 (0%) | | Average Finish: | 19.7 | | Total Laps/Poss.: | 173/341 (50.7%) | | Total Miles/Poss.: | 204.5/482 (42.4%) |
| | Short Track Events | | Total Races: | 2 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (50%) | | Average Finish: | 12 | | Total Laps/Poss.: | 324/422 (76.8%) | | Total Miles/Poss.: | 149.1/212.45 (70.2%) |
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: Jeff Jefferson Driver Card 2001 NASCAR Camping World Series, West
| 03/18 | Mesa Marin Raceway | 8 | 10 | 200/200 | 1,905 | Running |
| 06/30 | Evergreen Speedway | 3 | 21 | 59/200 | 1,000 | Engine |
| All Events | | Total Races: | 2 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (50%) | | Average Finish: | 15.5 | | Total Laps/Poss.: | 259/400 (64.8%) | | Total Miles/Poss.: | 138.11/229.2 (60.3%) |
| | Short Track Events | | Total Races: | 2 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (50%) | | Average Finish: | 15.5 | | Total Laps/Poss.: | 259/400 (64.8%) | | Total Miles/Poss.: | 138.1/229.2 (60.3%) |
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: Jeff Jefferson Driver Card 2000 NASCAR Camping World Series, West
| 03/18 | Phoenix International Raceway | 2 | 27 | 53/100 | 900 | Accident |
| 03/25 | Mesa Marin Raceway | 28 | 28 | 0/200 | 0 | Engine |
| 04/22 | Las Vegas Motor Speedway | 16 | 25 | 65/100 | 1,525 | Engine |
| 04/29 | Auto Club Speedway | 17 | 9 | 103/103 | 5,825 | Running |
| 06/24 | Toyota Speedway at Irwindale | 7 | 20 | 184/250 | 1,300 | Rearend |
| 07/04 | Portland Speedway | 1 | 1 | 200/200 | 15,800 | Running |
| 07/16 | Evergreen Speedway | 1 | 5 | 200/200 | 4,815 | Running |
| 08/19 | Toyota Speedway at Irwindale | 14 | 4 | 249/250 | 4,825 | Running |
| 09/04 | Rocky Mountain Raceways | 15 | 19 | 135/250 | 1,395 | Rearend |
| 10/22 | Mesa Marin Raceway | 12 | 6 | 254/254 | 3,115 | Running |
| 11/11 | Toyota Speedway at Irwindale | 22 | 25 | 138/305 | 1,500 | Accident |
| All Events | | Total Races: | 11 | | Wins: | 1 (9.1%) | | Top 5: | 3 (27.3%) | | Top 10: | 5 (45.5%) | | Average Finish: | 15.36 | | Total Laps/Poss.: | 1581/2212 (71.5%) | | Total Miles/Poss.: | 1048.83/1408.45 (74.5%) |
| Superspeedway Events | | Total Races: | 3 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (33.3%) | | Average Finish: | 20.3 | | Total Laps/Poss.: | 221/303 (72.9%) | | Total Miles/Poss.: | 356.5/456 (78.2%) |
| | Short Track Events | | Total Races: | 8 | | Wins: | 1 (12.5%) | | Top 5: | 3 (37.5%) | | Top 10: | 4 (50%) | | Average Finish: | 13.5 | | Total Laps/Poss.: | 1360/1909 (71.2%) | | Total Miles/Poss.: | 692.3/952.45 (72.7%) |
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: Jeff Jefferson Driver Card 1999 NASCAR Camping World Series, West
| 07/18 | Evergreen Speedway | 4 | 10 | 199/200 | 3,125 | Running |
| 08/14 | Portland Speedway | 15 | 24 | 73/200 | 600 | Rearend |
| 10/17 | Mesa Marin Raceway | -- | -- | --/250 | 0 | DNQ |
| All Events | | Total Races: | 2 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (50%) | | Average Finish: | 17 | | Total Laps/Poss.: | 272/400 (68%) | | Total Miles/Poss.: | 165.05/229.2 (72%) |
| | Short Track Events | | Total Races: | 2 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (50%) | | Average Finish: | 17 | | Total Laps/Poss.: | 272/400 (68%) | | Total Miles/Poss.: | 165.1/229.2 (72%) |
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: Jeff Jefferson Driver Card
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