No pre-race storylines were written for this race.
| Driver | St | Form index▼ | This trackAvg finish | ·Wins | ·Top 5 | ·Top 10 | ·Avg start | ·Laps led % | ·Rating | ·Avg running pos | ·Pace rank | ·Fire-off rank | ·Long-run rank | ·vs teammates | ·Make wins | SimilarAvg finish | ·Pace rank | FormLast 5 avg | ·% off best (5) | ·Trend | ·Avg start | ·Consistency | ·Comeback | ·Stage pts/race | ·Closing | ·Passes/race | ·Quality pass % | ·Top-10 laps % | Pit & restartsRestart gain | ·Pit avg | ·Pit rank | ErrorsPenalties/race | ·Errors/race | ·DNF % | PlayoffsPoints | ·Last visit | ·Career here |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20Christopher BellP | 12 | 67 | 12.04 | 14 | 14 | 24 | 12.34 | 3.9%4 | — | 11.74 | 9.84 | 9.34 | 9.33 | -6.73 | 14 | 13.512 | 8.312 | 7.25 | 0.45%5 | -1.06 | 11.831 | 13.531 | -2.031 | 6.931 | +2.4330 | 126.930 | 49.8%30 | 55.9%31 | +0.4131 | 13.60s30 | 13.430 | 0.4531 | 0.2631 | 19.4%31 | 3,1051 | 2023: P15 from 2 · led 9 · 0.54% off | 4 st · 1 W · best P1 · avg 12.0 |
| 9Chase ElliottP | 7 | 67 | 8.26 | 26 | 26 | 46 | 8.36 | 16.6%6 | — | 9.76 | 5.04 | 6.54 | 3.84 | -3.46 | 34 | 14.312 | 9.212 | 13.45 | 0.52%5 | +0.76 | 12.231 | 7.931 | +0.331 | 5.931 | -0.3730 | 155.030 | 49.5%30 | 53.5%31 | +0.1231 | 14.04s30 | 11.030 | 0.3231 | 0.0331 | 3.2%31 | 3,0611 | 2023: P9 from 8 · led 15 · 0.04% off | 6 st · 2 W · best P1 · avg 8.2 |
| 48Alex BowmanP | 17 | 66 | 6.45 | 05 | 25 | 55 | 7.65 | 0.4%5 | — | 14.95 | 11.33 | 9.33 | 9.33 | -2.45 | 34 | 15.812 | 18.412 | 10.85 | 0.44%5 | -3.76 | 14.431 | 10.431 | -0.331 | 4.831 | -0.2730 | 148.330 | 46.7%30 | 41.3%31 | +0.4031 | 12.25s30 | 12.630 | 0.2931 | 0.0731 | 9.7%31 | 3,0741 | 2023: P8 from 16 · 0.32% off | 5 st · 0 W · best P2 · avg 6.4 |
| 24William ByronP | 10 | 65 | 12.56 | 06 | 16 | 36 | 10.36 | 12.2%6 | — | 10.06 | 3.34 | 3.84 | 8.03 | +2.36 | 34 | 14.512 | 14.012 | 13.05 | 0.42%5 | -17.06 | 9.331 | 12.131 | -5.031 | 6.831 | -0.2030 | 145.130 | 52.0%30 | 53.9%31 | +0.5031 | 13.52s30 | 10.830 | 0.1931 | 0.1331 | 12.9%31 | 3,1221 | 2023: P2 from 14 · 0.00% off | 6 st · 0 W · best P2 · avg 12.5 |
| 17Chris Buescher | 29 | 62 | 11.86 | 06 | 16 | 36 | 16.76 | 0.2%6 | — | 16.56 | 13.84 | 12.34 | 10.54 | -9.86 | 04 | 10.812 | 10.112 | 15.85 | 0.51%5 | -0.36 | 17.631 | 9.431 | +3.631 | 2.931 | +2.3330 | 149.530 | 44.2%30 | 32.7%31 | +0.6731 | 15.34s30 | 20.629 | 0.3231 | 0.1331 | 6.5%31 | 8101 | 2023: P7 from 20 · 0.22% off | 6 st · 0 W · best P3 · avg 11.8 |
| 45Tyler ReddickP | 2 | 61 | 7.04 | 04 | 14 | 34 | 12.54 | 10.9%4 | — | 9.44 | 7.84 | 13.34 | 15.33 | -8.04 | 14 | 14.412 | 11.912 | 19.65 | 0.75%5 | +7.36 | 10.331 | 10.631 | -2.231 | 6.031 | -1.9030 | 137.030 | 44.3%30 | 45.9%31 | +0.3631 | 14.90s30 | 17.730 | 0.3231 | 0.0731 | 6.5%31 | 3,0621 | 2023: P6 from 1 · led 27 · 0.10% off | 4 st · 0 W · best P2 · avg 7.0 |
| 5Kyle LarsonP | 6 | 60 | 17.45 | 15 | 15 | 15 | 15.25 | 10.9%5 | — | 13.45 | 8.33 | 13.33 | 4.01 | +5.65 | 34 | 12.312 | 5.512 | 16.05 | 0.61%5 | -7.36 | 9.430 | 12.830 | -4.630 | 9.530 | -1.2129 | 131.229 | 57.3%29 | 68.0%30 | +0.5329 | 13.58s28 | 14.828 | 0.3330 | 0.2330 | 16.7%30 | 3,1001 | 2023: P13 from 36 · 0.59% off | 5 st · 1 W · best P1 · avg 17.4 |
| 22Joey LoganoP | 4 | 60 | 8.76 | 06 | 26 | 56 | 6.26 | 5.3%6 | — | 12.16 | 7.04 | 4.84 | 8.03 | -6.46 | 04 | 14.812 | 17.312 | 18.25 | 0.63%5 | +17.06 | 12.231 | 11.331 | -6.131 | 4.731 | -1.3730 | 130.930 | 55.4%30 | 45.0%31 | -0.1931 | 13.71s30 | 14.930 | 0.4831 | 0.2331 | 19.4%31 | 3,0481 | 2023: P5 from 7 · 0.00% off | 6 st · 0 W · best P2 · avg 8.7 |
| 54Ty Gibbs | 19 | 59 | 13.02 | 02 | 12 | 12 | 13.02 | 0.0%2 | — | 10.72 | 9.52 | 9.52 | 11.02 | -2.52 | 14 | 16.99 | 13.08 | 14.45 | 0.56%5 | -8.76 | 11.631 | 9.331 | -3.131 | 4.731 | +0.4030 | 146.530 | 44.4%30 | 43.7%31 | +0.0531 | 13.30s29 | 16.829 | 0.4231 | 0.0331 | 6.5%31 | 2,1441 | 2023: P4 from 10 · 0.23% off | 2 st · 0 W · best P4 · avg 13.0 |
| 12Ryan BlaneyP | 14 | 59 | 10.26 | 16 | 26 | 46 | 11.86 | 7.0%6 | — | 13.56 | 8.34 | 9.54 | 3.03 | -4.26 | 04 | 20.112 | 16.112 | 18.05 | -0.59%5 | -9.76 | 12.131 | 13.231 | -4.131 | 7.531 | -0.9730 | 128.130 | 57.9%30 | 58.0%30 | +0.0129 | 12.70s28 | 13.328 | 0.4730 | 0.1931 | 22.6%31 | 3,0731 | 2023: P12 from 17 · led 6 · 0.43% off | 6 st · 1 W · best P1 · avg 10.2 |
| 19Martin Truex Jr. | 30 | 55 | 15.76 | 06 | 06 | 26 | 10.56 | 0.9%6 | — | 13.66 | 14.04 | 12.54 | 11.73 | +0.45 | 14 | 16.512 | 11.912 | 18.65 | 0.62%5 | -17.76 | 12.831 | 10.931 | -4.431 | 6.731 | -1.8330 | 129.930 | 47.4%30 | 56.6%31 | +0.2630 | 13.81s29 | 15.229 | 0.3931 | 0.1331 | 9.7%31 | 2,1301 | 2023: P20 from 11 · 0.95% off | 6 st · 0 W · best P7 · avg 15.7 |
| 11Denny HamlinP | 18 | 55 | 16.86 | 06 | 16 | 16 | 15.06 | 3.8%6 | — | 18.26 | 18.34 | 17.04 | 13.84 | -0.36 | 14 | 19.812 | 11.211 | 13.85 | 0.89%5 | -10.76 | 11.231 | 12.231 | -3.631 | 8.231 | -1.6330 | 131.130 | 51.1%30 | 69.7%31 | -0.2330 | 14.38s29 | 14.329 | 0.3931 | 0.1631 | 12.9%31 | 3,0781 | 2023: P37 from 9 · 1.23% off | 6 st · 0 W · best P5 · avg 16.8 |
| 1Ross Chastain | 16 | 55 | 23.25 | 05 | 05 | 15 | 24.25 | 0.5%5 | — | 25.75 | 23.73 | 23.73 | 18.02 | -7.25 | 34 | 13.812 | 13.212 | 13.65 | 0.38%5 | +9.76 | 16.131 | 10.031 | +1.831 | 3.231 | -0.5730 | 134.730 | 51.6%30 | 37.6%31 | +0.5631 | 13.56s30 | 15.830 | 0.2631 | 0.1931 | 12.9%31 | 8121 | 2023: P10 from 12 · 0.98% off | 5 st · 0 W · best P10 · avg 23.2 |
| 8Kyle Busch | 11 | 55 | 18.26 | 06 | 36 | 36 | 12.36 | 4.7%6 | — | 12.26 | 11.54 | 7.34 | 15.73 | +3.26 | 34 | 13.412 | 11.312 | 20.05 | 0.91%5 | +8.06 | 16.531 | 10.631 | -1.331 | 2.931 | -2.3030 | 152.030 | 51.2%30 | 33.8%31 | +0.6731 | 15.57s30 | 19.230 | 0.3231 | 0.2631 | 16.1%31 | 6841 | 2023: P3 from 5 · led 6 · 0.28% off | 6 st · 0 W · best P3 · avg 18.2 |
| 77Carson Hocevar | 20 | 54 | — | 00 | 00 | 00 | — | — | — | — | — | — | — | — | 34 | 16.34 | 18.84 | 16.65 | 0.69%5 | +4.06 | 20.631 | 8.031 | +2.231 | 0.631 | +1.9030 | 119.330 | 20.0%30 | 10.9%31 | +0.2430 | 15.40s29 | 23.029 | 0.1331 | 0.1331 | 6.5%31 | 5791 | first start here | — |
| 41Ryan Preece | 34 | 52 | 16.34 | 04 | 04 | 04 | 20.34 | 1.8%4 | — | 19.34 | 19.73 | 19.33 | 22.01 | -3.44 | 04 | 21.412 | 25.312 | 17.05 | 0.75%5 | +6.36 | 25.431 | 9.331 | +4.631 | 0.731 | +0.9030 | 136.530 | 24.8%30 | 7.2%31 | +0.7131 | 16.26s30 | 21.630 | 0.1931 | 0.1031 | 16.1%31 | 4951 | 2023: P11 from 18 · 0.86% off | 4 st · 0 W · best P11 · avg 16.3 |
| 23Darrell Wallace Jr. | 9 | 52 | 19.76 | 06 | 06 | 16 | 19.76 | 0.0%6 | — | 22.76 | 20.54 | 19.84 | 15.73 | -2.52 | 14 | 20.612 | 19.111 | 15.05 | 0.91%5 | -11.06 | 14.531 | 10.231 | -1.131 | 4.131 | +0.5730 | 145.330 | 45.6%30 | 46.7%31 | -0.0531 | 14.19s30 | 17.130 | 0.3231 | 0.1031 | 9.7%31 | 7891 | 2023: P16 from 4 · 0.85% off | 6 st · 0 W · best P7 · avg 19.7 |
| 6Brad Keselowski | 8 | 51 | 17.76 | 06 | 16 | 16 | 15.26 | 5.9%6 | — | 15.06 | 18.04 | 17.34 | 19.52 | +11.26 | 04 | 18.912 | 19.112 | 19.05 | 0.96%5 | -3.06 | 19.031 | 10.831 | +4.131 | 4.731 | -2.5330 | 160.430 | 44.4%30 | 36.1%31 | +0.3631 | 13.79s30 | 15.230 | 0.3631 | 0.1331 | 6.5%31 | 2,1041 | 2023: P18 from 19 · 0.85% off | 6 st · 0 W · best P5 · avg 17.7 |
| 13Shane van Gisbergen | 1 | 50 | — | 00 | 00 | 00 | — | — | — | — | — | — | — | — | 34 | 17.84 | 8.34 | 22.05 | 0.65%5 | -17.36 | 20.49 | 11.49 | -4.79 | 2.99 | +0.119 | 184.39 | 24.2%9 | 15.4%9 | +1.328 | 12.76s9 | 15.19 | 0.449 | 0.119 | 22.2%9 | 01 | first start here | — |
| 34Michael McDowell | 21 | 50 | 22.86 | 06 | 06 | 06 | 19.06 | 0.0%6 | — | 17.06 | 21.04 | 23.54 | 14.03 | -5.26 | 04 | 12.212 | 12.812 | 21.25 | 0.80%5 | +6.76 | 13.331 | 10.831 | -7.831 | 1.731 | -3.2730 | 126.930 | 43.9%30 | 25.1%31 | -0.3031 | 17.36s30 | 24.730 | 0.2631 | 0.1631 | 22.6%31 | 5481 | 2023: P32 from 13 · 1.78% off | 6 st · 0 W · best P12 · avg 22.8 |
| 3Austin Dillon | 22 | 49 | 20.06 | 06 | 06 | 16 | 17.36 | 0.0%6 | — | 19.06 | 18.04 | 19.34 | 24.52 | +7.56 | 34 | 22.512 | 24.312 | 17.85 | 1.08%5 | -7.36 | 18.931 | 9.131 | -3.131 | 1.131 | +0.6730 | 134.630 | 28.4%30 | 10.8%31 | -0.3331 | 17.48s30 | 21.030 | 0.1031 | 0.0731 | 9.7%31 | 4781 | 2023: P14 from 15 · 0.64% off | 6 st · 0 W · best P10 · avg 20.0 |
| 16AJ Allmendinger | 3 | 49 | 12.54 | 14 | 24 | 34 | 12.04 | 17.1%4 | — | 11.44 | 9.33 | 14.73 | 3.52 | -10.73 | 34 | 18.212 | 10.48 | 30.85 | 1.19%4 | -0.36 | 21.614 | 12.214 | -0.914 | 0.614 | +3.0714 | 105.114 | 26.2%14 | 13.6%14 | +1.4013 | 21.04s13 | 25.312 | 0.1414 | 0.2114 | 28.6%14 | 01 | 2023: P1 from 6 · led 46 · 0.17% off | 4 st · 1 W · best P1 · avg 12.5 |
| 2Austin CindricP | 5 | 49 | 23.02 | 02 | 02 | 02 | 17.02 | 0.0%2 | — | 19.32 | 16.02 | 16.52 | 9.01 | +7.82 | 04 | 17.911 | 20.211 | 19.85 | 1.00%5 | +15.36 | 14.931 | 9.131 | -5.631 | 3.631 | -0.2330 | 145.530 | 51.3%30 | 18.4%31 | -0.0430 | 14.00s29 | 16.229 | 0.3231 | 0.1031 | 9.7%31 | 3,0321 | 2023: P25 from 29 · 0.63% off | 2 st · 0 W · best P21 · avg 23.0 |
| 14Chase BriscoeP | 25 | 48 | 19.73 | 03 | 03 | 13 | 23.03 | 0.0%3 | — | 19.93 | 21.73 | 17.03 | 21.01 | +1.13 | 04 | 21.012 | 20.912 | 21.25 | 0.62%5 | +5.76 | 15.731 | 10.031 | -2.331 | 2.531 | -2.7030 | 139.530 | 39.6%30 | 33.3%31 | -0.4230 | 14.05s29 | 18.329 | 0.2331 | 0.0731 | 12.9%31 | 3,0291 | 2023: P28 from 30 · 1.26% off | 3 st · 0 W · best P9 · avg 19.7 |
| 99Daniel SuarezP | 13 | 47 | 27.06 | 06 | 06 | 06 | 15.86 | 0.0%6 | — | 17.86 | 25.04 | 27.04 | 24.73 | +11.34 | 34 | 18.212 | 16.612 | 17.05 | 1.00%5 | +12.36 | 20.431 | 9.531 | +2.331 | 2.031 | -0.0330 | 133.030 | 33.8%30 | 16.9%31 | -0.2530 | 16.16s30 | 17.330 | 0.3931 | 0.0331 | 6.5%31 | 3,0411 | 2023: P33 from 3 · 0.86% off | 6 st · 0 W · best P13 · avg 27.0 |
| 51Corey Lajoie | 28 | 46 | 23.65 | 05 | 05 | 05 | 27.65 | 0.0%5 | — | 24.05 | 26.04 | 24.54 | 27.73 | -11.03 | 04 | 22.712 | 23.212 | 18.45 | 0.58%5 | +12.36 | 23.531 | 9.231 | +0.931 | 0.331 | +2.7030 | 147.030 | 25.2%30 | 9.0%31 | +0.1431 | 15.29s30 | 20.230 | 0.1631 | 0.2331 | 9.7%31 | 4561 | 2023: P17 from 24 · 1.04% off | 5 st · 0 W · best P12 · avg 23.6 |
| 7Justin Haley | 33 | 46 | 21.33 | 03 | 13 | 13 | 25.33 | 0.0%3 | — | 19.83 | 20.03 | 22.03 | 14.01 | +8.03 | 34 | 20.712 | 21.612 | 20.65 | 1.09%5 | -2.06 | 28.931 | 8.231 | +6.031 | 0.231 | +1.0030 | 143.330 | 26.0%30 | 9.4%31 | +0.7931 | 16.69s30 | 25.330 | 0.2931 | 0.0331 | 6.5%31 | 4481 | 2023: P22 from 25 · 1.16% off | 3 st · 0 W · best P5 · avg 21.3 |
| 10Noah Gragson | 32 | 46 | 23.01 | 01 | 01 | 01 | 29.01 | 0.0%1 | — | 15.31 | 17.01 | 16.01 | 8.01 | -0.71 | 04 | 24.97 | 25.47 | 20.05 | 0.66%5 | -7.36 | 21.431 | 10.931 | +1.631 | 0.431 | +0.9330 | 142.230 | 33.2%30 | 14.7%31 | -0.1530 | 15.13s28 | 17.228 | 0.1931 | 0.1931 | 19.4%31 | 5161 | 2022: P23 from 29 · 0.90% off | 1 st · 0 W · best P23 · avg 23.0 |
| 47Ricky Stenhouse Jr. | 24 | 45 | 24.26 | 06 | 06 | 06 | 25.36 | 0.3%6 | — | 23.66 | 25.54 | 26.54 | 20.34 | -2.04 | 34 | 19.212 | 21.611 | 21.45 | 0.88%4 | -5.76 | 26.231 | 10.931 | +4.431 | 1.531 | -0.4030 | 154.530 | 30.6%30 | 12.6%31 | +0.0730 | 14.23s29 | 22.229 | 0.1931 | 0.2631 | 22.6%31 | 5221 | 2023: P34 from 27 · 2.64% off | 6 st · 0 W · best P17 · avg 24.2 |
| 71Zane Smith | 23 | 45 | 30.01 | 01 | 01 | 01 | 34.01 | 0.0%1 | — | 28.71 | 31.01 | 32.01 | 22.01 | -2.01 | 34 | 19.26 | 24.86 | 14.65 | 0.64%5 | -0.76 | 26.431 | 9.731 | +3.531 | 0.031 | +2.6730 | 118.530 | 15.9%30 | 4.5%31 | +0.4431 | 16.69s30 | 24.230 | 0.1931 | 0.1031 | 12.9%31 | 4421 | 2023: P30 from 34 · 1.86% off | 1 st · 0 W · best P30 · avg 30.0 |
| 43Erik Jones | 37 | 40 | 22.86 | 06 | 16 | 16 | 17.86 | 0.3%6 | — | 22.86 | 17.54 | 17.84 | 21.33 | +1.25 | 14 | 23.512 | 24.712 | 25.85 | 1.03%5 | -4.36 | 27.029 | 8.629 | +4.329 | 1.129 | +2.1428 | 146.928 | 19.5%28 | 5.4%29 | +0.3929 | 18.05s28 | 24.528 | 0.3529 | 0.0729 | 6.9%29 | 4521 | 2023: P36 from 23 · 2.32% off | 6 st · 0 W · best P3 · avg 22.8 |
| 31Daniel Hemric | 27 | 40 | 28.02 | 02 | 02 | 02 | 15.52 | 0.9%2 | — | 17.12 | — | — | — | +4.02 | 34 | 22.97 | 23.04 | 23.85 | 0.85%5 | +2.06 | 28.231 | 8.631 | +5.131 | 0.231 | +1.1330 | 147.430 | 23.6%30 | 5.2%31 | +0.2131 | 14.96s30 | 24.530 | 0.2631 | 0.1331 | 9.7%31 | 4421 | 2019: P33 from 20 · led 2 | 2 st · 0 W · best P23 · avg 28.0 |
| 4Josh Berry | 36 | 40 | — | 00 | 00 | 00 | — | — | — | — | — | — | — | — | 04 | 25.84 | 24.04 | 31.25 | 0.65%5 | +6.36 | 19.531 | 10.431 | -3.731 | 2.031 | -4.9330 | 131.030 | 37.5%30 | 32.2%30 | -1.0030 | 13.46s29 | 14.129 | 0.3030 | 0.3631 | 32.3%31 | 4911 | first start here | — |
| 38Todd Gilliland | 15 | 39 | 26.52 | 02 | 02 | 02 | 32.02 | 0.0%2 | — | 25.62 | 29.52 | 25.02 | 26.52 | -4.52 | 04 | 19.511 | 24.911 | 25.05 | 1.16%5 | +7.36 | 21.831 | 8.631 | +1.331 | 1.631 | -1.2330 | 155.330 | 43.5%30 | 21.8%31 | +0.1531 | 15.91s30 | 24.030 | 0.3231 | 0.1331 | 9.7%31 | 5601 | 2023: P23 from 32 · 1.33% off | 2 st · 0 W · best P23 · avg 26.5 |
| 21Harrison Burton | 26 | 34 | 26.02 | 02 | 02 | 02 | 27.02 | 0.0%2 | — | 25.22 | 27.02 | 24.02 | 28.01 | — | 04 | 25.511 | 29.711 | 29.45 | 1.03%5 | +5.36 | 25.031 | 8.831 | -1.331 | 0.631 | +0.7030 | 137.830 | 24.7%30 | 5.5%31 | -0.6530 | 14.68s29 | 20.729 | 0.2931 | 0.2331 | 19.4%31 | 2,0481 | 2023: P24 from 31 · 1.45% off | 2 st · 0 W · best P24 · avg 26.0 |
| 15Kaz Grala | 31 | 34 | — | 00 | 00 | 00 | — | — | — | — | — | — | — | — | 04 | 28.25 | 30.65 | 32.65 | 3.08%5 | +7.06 | 33.120 | 6.520 | +4.820 | 0.020 | -0.1520 | 74.820 | 9.3%20 | 1.8%20 | -0.3819 | 15.63s19 | 26.719 | 0.2020 | 0.1020 | 10.0%20 | 1781 | first start here | — |
| 42John Hunter Nemechek | 35 | 28 | 36.01 | 01 | 01 | 01 | 19.01 | 0.0%1 | — | 33.41 | 36.01 | 36.01 | 36.01 | +4.01 | 14 | 24.06 | 22.06 | 29.65 | 1.13%5 | +5.06 | 27.231 | 8.331 | +1.831 | 0.731 | +0.4730 | 114.730 | 13.8%30 | 7.9%31 | +0.2931 | 18.01s30 | 22.630 | 0.3231 | 0.3231 | 16.1%31 | 3921 | 2020: P36 from 19 · 3.94% off | 1 st · 0 W · best P36 · avg 36.0 |
| 66Josh Bilicki | 38 | 19 | 31.34 | 04 | 04 | 04 | 32.04 | 0.0%4 | — | 30.64 | 31.03 | 31.73 | 19.73 | -0.32 | 04 | 31.212 | 33.310 | 30.05 | 8.23%2 | +4.06 | 38.02 | 4.22 | +7.02 | 0.02 | -1.502 | 26.02 | 5.8%2 | 0.0%2 | -1.202 | 24.99s2 | 38.02 | 0.002 | 0.002 | 0.0%2 | 01 | 2023: P26 from 28 · 1.63% off | 4 st · 0 W · best P26 · avg 31.3 |
Ranked by the form index: a 0–100 composite of the driver's record here, at similar tracks and in the last five races, with pace, pit crew and penalties. Hover for the definition.