| NASCAR Cup Series Loop Data stats for William Byron at Dover Motor Speedway
Click on the Race to see results for that race. |
| Race | Start | Mid Race | Finish | High Pos. | Low Pos. | Avg. Pos. | Pass Diff. | Green Flag Passes | Green Flag Times Passed | Quality Passes | Pct. Quality Passes | Fastest Lap | Top 15 Laps | Pct. Top 15 Laps | Laps Led | Pct. Laps Led | Total Laps | DRIVER RATING |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018-11 | 17 | 15 | 14 | 11 | 33 | 16 | 10 | 31 | 21 | 13 | 41.9 | 0 | 221 | 55.3 | 0 | 0.0 | 399 | 72.5 |
| 2018-30 | 22 | 23 | 19 | 18 | 33 | 22 | 3 | 49 | 46 | 0 | 0.0 | 7 | 0 | 0.0 | 0 | 0.0 | 402 | 63.5 |
| 2019-11 | 2 | 17 | 8 | 1 | 25 | 12 | 14 | 81 | 67 | 43 | 53.1 | 10 | 286 | 71.5 | 5 | 1.2 | 400 | 87.0 |
| 2019-30 | 6 | 16 | 13 | 1 | 17 | 10 | -7 | 57 | 64 | 38 | 66.7 | 8 | 385 | 96.7 | 1 | 0.3 | 398 | 99.6 |
| 2020-24 | 8 | 2 | 28 | 1 | 29 | 20 | -4 | 59 | 63 | 17 | 28.8 | 6 | 82 | 26.6 | 1 | 0.3 | 308 | 66.6 |
| 2020-25 | 23 | 6 | 4 | 1 | 23 | 6 | 5 | 17 | 12 | 14 | 82.4 | 6 | 295 | 94.9 | 0 | 0.0 | 311 | 110.1 |
| 2021-13 | 3 | 3 | 4 | 1 | 14 | 4 | 5 | 18 | 13 | 18 | 100.0 | 26 | 400 | 100.0 | 21 | 5.2 | 400 | 117.7 |
| 2022-11 | 33 | 9 | 22 | 4 | 33 | 15 | -4 | 47 | 51 | 19 | 40.4 | 3 | 208 | 52.1 | 0 | 0.0 | 399 | 68.2 |
| 2023-11 | 8 | 3 | 4 | 1 | 16 | 3 | -1 | 33 | 34 | 27 | 81.8 | 57 | 399 | 99.8 | 193 | 48.3 | 400 | 126.8 |
| 2024-11 | 3 | 18 | 33 | 1 | 27 | 13 | -16 | 48 | 64 | 8 | 16.7 | 15 | 185 | 56.2 | 36 | 10.9 | 329 | 81.7 |
| 2025-21 | 5 | 5 | 31 | 3 | 25 | 6 | -5 | 56 | 61 | 26 | 46.4 | 8 | 383 | 97.5 | 0 | 0.0 | 393 | 91.7 |
| Average Driver Rating: | 89.6 | |||||||||||||||||
Green Flag Passes: Green flag passes for position.
Pass Diff.: Difference between Green Flag Passes and Green Flag Times Passed.
Quality Passes: Number of times passing a car running in the Top 15 while under a green flag.
Fastest Lap: How many times a driver had the fastest lap of all drivers.
Driver Rating: A formula combining the following categories: Win, Finish, Top-15 Finish, Average Running Position while on Lead Lap, Average Speed Under Green, Fastest Lap, Led Most Laps, Lead-Lap Finish. Maximum: 150 points per race.