Jack JefferyNASCAR K&N Pro Series West Results (Portland Speedway)(1970-present only) Click on the Race to see the complete results for that race. |
| Race | Site | Cars | St | Fin | # | Sponsor / Owner | Car | Laps | Money | Status | Led |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1972-11 | Portland | 20 | 17 | 7 | 22 | – | Dodge | 98/100 | 175 | running | 0 |
| 1973-08 | Portland | 25 | 19 | 18 | 22 | Best Auto Parts (P.A. Campbell) | Dodge | 49/100 | 130 | engine | 0 |
| 1973-20 | Portland | 22 | 18 | 8 | 22 | Bowers Machine (P.A. Campbell) | Dodge | 195/200 | 240 | running | 0 |
| 1978-13 | Portland | 24 | 7 | 8 | 4 | Bowers Machine (Dick Bowman) | Chevrolet | 99/100 | 360 | running | 0 |
| 1979-13 | Portland | 23 | 10 | 6 | 07 | Acoustical Drywall (Jack Jeffrey) | Pontiac | 100/100 | 425 | running | 0 |
| 1981-07 | Portland | 19 | 19 | 8 | 88 | Jefferies Racing | Buick | 147/150 | 650 | running | 0 |
6 starts, 688 of 750 laps completed (91.7%), 0 laps led Win: 0 ( 0.0%) Average start:15.0 Total Winnings: $1,980 Top 5: 0 ( 0.0%) Average finish: 9.2 Top 10: 5 ( 83.3%) DNF: 1 |