Stat Pack Recap: 2025 NASCAR Cup Series Coca-Cola 600

Race: Results | Analytics | Loop Data | Lap-by-lap Download

Qualifying: Busch Pole Qualifying results and lap download

Practice: NCS Final Practice results and lap download

It's a testament to Byron's dominance in this race that he had a better PGAE (positions gained above expected) than the guy who went from last to first.

Mathematically, why did this happen? Look at the table below. PGAE is calculated: for every lap, look up the driver's position in the Running Position column, then credit them with the difference between their position on their next lap and the corresponding Avg. Position on Next Lap column. Thus, Byron accumulated 0.071 PGAE for every lap he held the lead. Meanwhile, any lap Chastain didn't gain position while running at the back, he lost PGAE.

I like that. Nobody cares if you move up from 35th to 25th, but we all applaud holding the lead. That's that math that PGAE is built on.

Running Position	Avg. Position on Next Lap
1	1.071
2	2.051
3	3.036
4	4.016
5	5.009
6	6.003
7	6.981
8	7.970
9	8.959
10	9.955
11	10.941
12	11.941
13	12.916
14	13.925
15	14.905
16	15.902
17	16.891
18	17.893
19	18.872
20	19.871
21	20.865
22	21.861
23	22.862
24	23.869
25	24.864
26	25.856
27	26.853
28	27.858
29	28.857
30	29.868
31	30.884
32	31.892
33	32.901
34	33.904
35	34.915
36	35.920
37	36.919
38	37.904
39	38.893
40	39.901

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Driver	Start	Finish	ARP	PGAE	GR-LR	cPOMS
Ross Chastain	40	1	12.57	51.35	1.523	0.977
William Byron	3	2	1.74	53.60	1.683	0.985
Chase Briscoe	1	3	13.57	21.77	0.490	0.976
AJ Allmendinger	5	4	6.52	33.69	0.945	0.980
Brad Keselowski	35	5	19.40	50.77	0.617	0.972