William Byron

Short at 0.89
Inter at 0.97
Long at 0.97
Super at 0.85
Road at 0.64
Age: 27
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Stats

Stats on this page
  • W% - Winning percentage
  • T5% - Top 5 percentage
  • T10% - Top 10 percentage
  • f-stats - The stat but in finishes
  • Fin% - Percentage of races finishes
  • SS - Speed score - 1000 x the ratio of the driver's 95th percentile lap to the race 95th percentile lap. A good read of a driver's top speed. [Read more]
Season Age Car Starts W% T3% T5% T10% fW% fT3% fT5% fT10% ASP AFP ARP Fin% fAFP Succ% SS Pen. Driver Pen. Crew Pen. Cau. Inv.
2018 20 24 Chevy 36 0.0 0.0 0.0 11.1 0.0 0.0 0.0 14.8 17.67 22.08 75.00 17.74 44.4 0.00 0.00 0.00 0.33
2019 21 24 Chevy 36 0.0 5.6 13.9 36.1 0.0 6.1 15.2 39.4 12.42 14.89 91.67 13.42 61.1 0.00 0.00 0.00 0.22
2020 22 24 Chevy 36 2.8 2.8 11.1 38.9 3.1 3.1 12.5 43.8 14.89 16.19 13.36 88.89 13.53 63.9 -0.02 0.56 0.36 0.19 0.25
2021 23 24 Chevy 36 2.8 19.4 33.3 55.6 3.2 22.6 38.7 64.5 8.72 13.64 8.70 86.11 10.19 63.9 5.07 0.36 0.14 0.19 0.19
2022 24 24 Chevy 36 5.6 11.1 13.9 30.6 6.7 13.3 16.7 36.7 12.50 15.56 10.21 83.33 12.03 61.1 1.74 0.25 0.14 0.11 0.06
2023 25 24 Chevy 36 16.7 27.8 41.7 58.3 18.2 30.3 45.5 63.6 10.89 10.97 9.56 91.67 8.91 75.0 4.34 0.00 0.00 0.00 0.11
2024 26 24 Chevy 36 8.3 30.6 36.1 58.3 9.4 34.4 40.6 65.6 9.56 12.94 10.94 88.89 10.56 66.7 2.23 0.00 0.00 0.00 0.28
2025 27 24 Chevy 12 8.3 33.3 41.7 58.3 8.3 33.3 41.7 58.3 9.33 10.17 10.32 100.00 10.17 66.7 4.58 0.00 0.00 0.00 0.08

Career Stats

Series Starts W% T3% T5% T10% fW% fT3% fT5% fT10% ASP AFP ARP Fin% fAFP Succ% SS Pen. Driver Pen. Crew Pen. Cau. Inv.
Truck 7 14.3 42.9 57.1 57.1 16.7 50.0 66.7 66.7 13.14 10.14 7.33 85.71 5.83 71.4 5.86 0.14 0.14 0.00 0.00
Xfinity 42 9.5 28.6 38.1 61.9 10.8 32.4 43.2 70.3 9.50 10.67 11.87 88.10 8.05 73.8 4.71 0.00 0.00 0.00 0.19
Cup 264 5.3 14.8 22.3 42.0 6.1 17.0 25.7 48.3 12.24 14.95 10.57 87.12 12.11 62.5 2.79 0.16 0.09 0.07 0.20

Career stats go back to 2020 for lap-by-lap statistics and 2017 for race-by-race statistics.

Splits

Terms
S: short tracks
I: intermediate tracks
L: long tracks (think Michigan, Chicago)
SS: super speedways
R: road courses
D: dirt
Season Age Car Starts AFP S S AFP I I AFP L L AFP SS SS AFP R R AFP D D AFP
2018 20 24 Chevy 36 22.08 11 22.08 11 22.08 7 22.08 4 22.08 3 22.08 0 22.08
2019 21 24 Chevy 36 14.89 11 14.89 11 14.89 7 14.89 4 14.89 3 14.89 0 14.89
2020 22 24 Chevy 36 16.19 10 16.19 14 16.19 6 16.19 4 16.19 2 16.19 0 16.19
2021 23 24 Chevy 36 13.64 9 13.64 12 13.64 3 13.64 4 13.64 7 13.64 1 13.64
2022 24 24 Chevy 36 15.56 9 15.56 11 15.56 3 15.56 6 15.56 6 15.56 1 15.56
2023 25 24 Chevy 36 10.97 9 10.97 11 10.97 3 10.97 6 10.97 6 10.97 1 10.97
2024 26 24 Chevy 36 12.94 11 12.94 11 12.94 3 12.94 6 12.94 5 12.94 0 12.94
2025 27 24 Chevy 12 10.17 3 10.17 5 10.17 0 10.17 3 10.17 1 10.17 0 10.17