| NASCAR Cup Series Loop Data stats for William Byron at Darlington Raceway
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018-25 | 10 | 7 | 35 | 4 | 16 | 13 | -11 | 51 | 62 | 43 | 84.3 | 2 | 328 | 89.4 | 0 | 0.0 | 329 | 67.8 |
| 2019-25 | 1 | 9 | 21 | 1 | 22 | 10 | 3 | 66 | 63 | 36 | 54.5 | 11 | 276 | 75.6 | 0 | 0.0 | 365 | 84.8 |
| 2020-05 | 18 | 34 | 35 | 1 | 35 | 24 | 5 | 17 | 12 | 17 | 100.0 | 5 | 106 | 36.2 | 3 | 1.1 | 279 | 78.1 |
| 2020-06 | 34 | 4 | 12 | 2 | 34 | 14 | 4 | 66 | 62 | 22 | 33.3 | 1 | 113 | 54.3 | 0 | 0.0 | 208 | 84.3 |
| 2020-27 | 3 | 12 | 5 | 3 | 22 | 10 | 9 | 84 | 75 | 59 | 70.2 | 3 | 323 | 88.0 | 0 | 0.0 | 367 | 96.3 |
| 2021-12 | 5 | 5 | 4 | 2 | 27 | 6 | 1 | 80 | 79 | 42 | 52.5 | 3 | 288 | 98.3 | 0 | 0.0 | 293 | 111.5 |
| 2021-27 | 14 | 7 | 34 | 6 | 36 | 25 | 28 | 101 | 73 | 19 | 18.8 | 3 | 82 | 41.2 | 0 | 0.0 | 199 | 61.8 |
| 2022-12 | 9 | 8 | 13 | 1 | 22 | 6 | -13 | 49 | 62 | 31 | 63.3 | 16 | 284 | 96.9 | 24 | 8.2 | 293 | 103.1 |
| 2022-27 | 3 | 3 | 8 | 1 | 17 | 5 | -1 | 61 | 62 | 50 | 82.0 | 24 | 366 | 99.7 | 50 | 13.6 | 367 | 113.3 |
| 2023-13 | 4 | 3 | 1 | 1 | 17 | 4 | 1 | 42 | 41 | 29 | 69.0 | 22 | 292 | 99.0 | 7 | 2.4 | 295 | 126.2 |
| 2023-27 | 23 | 2 | 4 | 1 | 33 | 9 | 8 | 94 | 86 | 27 | 28.7 | 22 | 256 | 69.8 | 0 | 0.0 | 367 | 101.9 |
| 2024-13 | 5 | 5 | 6 | 1 | 18 | 6 | -6 | 47 | 53 | 30 | 63.8 | 11 | 289 | 98.6 | 2 | 0.7 | 293 | 105.7 |
| 2024-26 | 8 | 4 | 30 | 1 | 20 | 7 | 0 | 95 | 95 | 67 | 70.5 | 7 | 340 | 98.8 | 2 | 0.6 | 344 | 92.7 |
| 2025-08 | 1 | 1 | 2 | 1 | 12 | 2 | -3 | 19 | 22 | 15 | 78.9 | 86 | 297 | 100.0 | 243 | 81.8 | 297 | 142.7 |
| 2025-27 | 11 | 21 | 21 | 8 | 30 | 15 | 1 | 124 | 123 | 39 | 31.5 | 1 | 254 | 69.2 | 0 | 0.0 | 367 | 76.2 |
| 2026-06 | 13 | 20 | 8 | 4 | 32 | 9 | 4 | 92 | 88 | 46 | 50.0 | 8 | 265 | 90.4 | 0 | 0.0 | 293 | 95.4 |
| Average Driver Rating: | 96.4 | |||||||||||||||||
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.