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2005 NASCAR AutoZone Elite Division, Northwest Series
| 05/28 | Yakima Speedway | 8 | 2 | 2,400 | Running |
| 06/11 | Magic Valley Speedway | 7 | 7 | 1,200 | Running |
| 07/02 | Wenatchee Valley Super Oval | 4 | 1 | 2,700 | Running |
| 07/09 | Evergreen Speedway | 6 | 2 | 1,900 | Running |
| 07/23 | Yakima Speedway | 4 | 1 | 2,700 | Running |
| 08/13 | Evergreen Speedway | 6 | 2 | 1,900 | Running |
| 08/20 | Magic Valley Speedway | 8 | 22 | 700 | Accident |
| 09/04 | Yakima Speedway | 6 | 11 | 1,291 | Running |
| 09/25 | Wenatchee Valley Super Oval | 3 | 1 | 0 | |
| All Events | | Total Races: | 9 | | Wins: | 3 (33.3%) | | Top 5: | 6 (66.7%) | | Top 10: | 7 (77.8%) | | Average Finish: | 5.44 |
| | Short Track Events | | Total Races: | 9 | | Wins: | 3 (33.3%) | | Top 5: | 6 (66.7%) | | Top 10: | 7 (77.8%) | | Average Finish: | 5.4 |
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: Jeff Jefferson Driver Card 2004 NASCAR AutoZone Elite Division, Northwest Series
| 04/24 | Tri-City Raceway | 2 | 24 | 570 | Accident |
| 05/08 | Evergreen Speedway (.375) | 25 | 18 | 675 | Running |
| 05/29 | Yakima Speedway | 5 | 1 | 250 | Running |
| 06/12 | Magic Valley Speedway | 6 | 6 | 1,750 | Running |
| 06/26 | Evergreen Speedway | 10 | 3 | 1,950 | Running |
| 07/03 | Wenatchee Valley Super Oval | 1 | 1 | 2,300 | Running |
| 07/24 | Yakima Speedway | 10 | 17 | 1,025 | Rear End |
| 08/07 | Montana Raceway Park | 7 | 2 | 0 | Running |
| 08/14 | Yakima Speedway | 8 | 1 | 3,600 | Running |
| 09/04 | Tri-City Raceway | 4 | 1 | 2,400 | Running |
| 09/25 | Wenatchee Valley Super Oval | 6 | 2 | 2,350 | Running |
| All Events | | Total Races: | 11 | | Wins: | 4 (36.4%) | | Top 5: | 7 (63.6%) | | Top 10: | 8 (72.7%) | | Average Finish: | 6.91 |
| | Short Track Events | | Total Races: | 11 | | Wins: | 4 (36.4%) | | Top 5: | 7 (63.6%) | | Top 10: | 8 (72.7%) | | Average Finish: | 6.9 |
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: Jeff Jefferson Driver Card 2003 NASCAR AutoZone Elite Division, Northwest Series
| 03/29 | Evergreen Speedway | 6 | 13 | 825 | Running |
| 04/26 | Tri-City Raceway | 8 | 2 | 2,250 | Running |
| 05/10 | Evergreen Speedway (.375) | 11 | 6 | 1,125 | Running |
| 05/24 | Wenatchee Valley Super Oval | 2 | 1 | 2,400 | Running |
| 05/31 | Yakima Speedway | 7 | 13 | 800 | Running |
| 06/14 | Magic Valley Speedway | 9 | 6 | 1,400 | Running |
| 07/05 | Wenatchee Valley Super Oval | 5 | 3 | 1,650 | Running |
| 07/12 | Evergreen Speedway | 16 | 6 | 1,050 | Running |
| 07/19 | Yakima Speedway | 10 | 3 | 1,875 | Running |
| 08/09 | Montana Raceway Park | 5 | 9 | 1,100 | Running |
| 08/24 | Pacific Raceways | 1 | 1 | 6,575 | Running |
| 08/31 | Tri-City Raceway | 7 | 1 | 2,400 | Running |
| 09/13 | Magic Valley Speedway | 6 | 1 | 3,835 | Running |
| 09/27 | Wenatchee Valley Super Oval | 5 | 5 | 1,350 | Running |
| All Events | | Total Races: | 14 | | Wins: | 4 (28.6%) | | Top 5: | 8 (57.1%) | | Top 10: | 12 (85.7%) | | Average Finish: | 5 |
| | Short Track Events | | Total Races: | 13 | | Wins: | 3 (23.1%) | | Top 5: | 7 (53.8%) | | Top 10: | 11 (84.6%) | | Average Finish: | 5.3 |
| Road Course Events | | Total Races: | 1 | | Wins: | 1 (100%) | | Top 5: | 1 (100%) | | Top 10: | 1 (100%) | | Average Finish: | 1 |
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: Jeff Jefferson Driver Card 2002 NASCAR AutoZone Elite Division, Northwest Series
| 03/30 | Evergreen Speedway | 6 | 5 | 1,350 | Running |
| 04/27 | Tri-City Raceway | 4 | 1 | 4,225 | Running |
| 05/11 | South Sound Speedway | 5 | 17 | 575 | Engine |
| 05/25 | Wenatchee Valley Super Oval | 6 | 21 | 1,100 | Electrical |
| 06/01 | Yakima Speedway | 8 | 7 | 975 | Running |
| 07/06 | Wenatchee Valley Super Oval | 1 | 3 | 0 | Running |
| 07/13 | Evergreen Speedway | 2 | 1 | 4,200 | Running |
| 07/20 | Yakima Speedway | 8 | 14 | 750 | Running |
| 08/03 | South Sound Speedway | 10 | 4 | 1,175 | Running |
| 08/10 | Montana Raceway Park | 4 | 9 | 1,150 | Running |
| 09/01 | Tri-City Raceway | 6 | 19 | 845 | Engine |
| 09/14 | Magic Valley Speedway | 3 | 22 | 875 | Running |
| 09/21 | Yakima Speedway | 2 | 24 | 575 | Engine |
| 09/28 | Wenatchee Valley Super Oval | 11 | 5 | 1,225 | Running |
| All Events | | Total Races: | 14 | | Wins: | 2 (14.3%) | | Top 5: | 6 (42.9%) | | Top 10: | 8 (57.1%) | | Average Finish: | 10.86 |
| | Short Track Events | | Total Races: | 14 | | Wins: | 2 (14.3%) | | Top 5: | 6 (42.9%) | | Top 10: | 8 (57.1%) | | Average Finish: | 10.9 |
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: Jeff Jefferson Driver Card 2001 NASCAR AutoZone Elite Division, Northwest Series
| 06/02 | Yakima Speedway | 8 | 18 | 390 | Running |
| 06/23 | Portland International Raceway | 6 | 5 | 1,450 | Running |
| 07/14 | Yakima Speedway | 1 | 11 | 1,100 | Running |
| 08/04 | Evergreen Speedway | 2 | 5 | 1,050 | Running |
| 09/02 | Tri-City Raceway | 6 | 3 | 1,870 | Running |
| 09/22 | Yakima Speedway | 4 | 13 | 825 | Running |
| 09/29 | Wenatchee Valley Super Oval | 3 | 12 | 675 | Running |
| All Events | | Total Races: | 7 | | Wins: | 0 (0%) | | Top 5: | 3 (42.9%) | | Top 10: | 3 (42.9%) | | Average Finish: | 9.57 |
| | Short Track Events | | Total Races: | 6 | | Wins: | 0 (0%) | | Top 5: | 2 (33.3%) | | Top 10: | 2 (33.3%) | | Average Finish: | 10.3 |
| Road Course Events | | Total Races: | 1 | | Wins: | 0 (0%) | | Top 5: | 1 (100%) | | Top 10: | 1 (100%) | | Average Finish: | 5 |
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: Jeff Jefferson Driver Card 1999 NASCAR AutoZone Elite Division, Northwest Series
| All Events | | Total Races: | 2 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (50%) | | Average Finish: | 17.5 |
| | Short Track Events | | Total Races: | 2 | | Wins: | 0 (0%) | | Top 5: | 0 (0%) | | Top 10: | 1 (50%) | | Average Finish: | 17.5 |
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: Jeff Jefferson Driver Card
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