NASCAR Xfinity Series at Darlington

Darlington Raceway — September 4, 2021

Noah Gragson

Winner

152

Laps

Entries

Leaders

Noah Gragson won the 2021 NASCAR Xfinity Series at Darlington at Darlington Raceway on September 4, 2021, leading 40 of 152 laps. Harrison Burton finished second; Austin Cindric rounded out the podium. The race featured 8 different leaders.

Race Details

Date

Saturday, September 4, 2021

Track

Darlington Raceway

Season

2021

Winner

Noah Gragson

Leaders

8 drivers

Sort by

Pos	Start	+/-	Driver	Laps	Interval	Status	Led	Pts
1	8	+7	Noah Gragson	152	—	Running	40	59
2	6	+4	Harrison Burton	152	—	Running	—	44
3	24	+21	Austin Cindric	152	—	Running	1	46
4	3	-1	Justin Haley	152	—	Running	4	42
5	5	—	Jeb Burton	152	—	Running	—	32
6	4	-2	Justin Allgaier	152	—	Running	19	39
7	28	+21	Tyler Reddick	152	—	Running	—	0
8	15	+7	Jeremy Clements	152	—	Running	—	29
9	9	—	Myatt Snider	152	—	Running	—	31
10	22	+12	Alex Labbe	152	—	Running	—	27
11	12	+1	Ryan Sieg	152	—	Running	—	26
12	14	+2	Denny Hamlin	152	—	Running	43	0
13	10	-3	Ty Dillon	152	—	Running	—	24
14	19	+5	Michael Annett	152	—	Running	—	23
15	16	+1	Josh Williams	152	—	Running	—	22
16	17	+1	Landon Cassill	152	—	Running	—	21
17	31	+14	Colin Garrett	152	—	Running	—	20
18	26	+8	Mason Massey	152	—	Running	—	19
19	32	+13	Joe Graf Jr.	152	—	Running	—	18
20	2	-18	A.J. Allmendinger	152	—	Running	24	30
21	20	-1	Jade Buford	152	—	Running	—	16
22	39	+17	B.J. McLeod	152	—	Running	—	0
23	33	+10	Matt Mills	152	—	Running	—	14
24	1	-23	Daniel Hemric	152	—	Running	18	29
25	27	+2	Ryan Vargas	152	—	Running	—	12
26	21	-5	Jeffrey Earnhardt	152	—	Running	—	11
27	30	+3	Colby Howard	152	—	Running	—	10
28	23	-5	Brandon Brown	151	—	Running	—	9
29	35	+6	Austin Dillon	151	—	Running	—	0
30	18	-12	David Starr	151	—	Running	—	7
31	38	+7	Carson Ware	151	—	Running	—	6
32	34	+2	Jesse Little	150	—	Running	—	5
33	25	-8	Brandon Jones	146	—	Running	—	7
34	37	+3	Kyle Weatherman	134	—	Running	—	3
35	36	+1	Ryan Ellis	133	—	Running	—	2
36	29	-7	Timmy Hill	116	—	DNF	—	0
37	13	-24	Tommy Joe Martins	108	—	DNF	3	1
38	7	-31	Riley Herbst	107	—	DNF	—	1
39	11	-28	Sam Mayer	45	—	DNF	—	1
40	40	—	Gray Gaulding	2	—	DNF	—	1

Model Performance

How well did the NR-Rating model predict this race? Across 13 matched drivers, the model averaged 10.0 positions off — worse than the season average of 8.5. Below Average

Pos	Driver	Predicted	Actual	Delta	Conf.
1	Noah Gragson	21.4	1	+20.4	High Confidence
3	Austin Cindric	15.4	3	+12.4	Coinflip
4	Justin Haley	19.9	4	+15.9	Moderate
6	Justin Allgaier	18.3	6	+12.3	Coinflip
7	Tyler Reddick	6.2	7	-0.8	High Confidence
12	Denny Hamlin	8.2	12	-3.8	High Confidence
13	Ty Dillon	23.4	13	+10.4	High Confidence
20	A.J. Allmendinger	18.3	20	-1.7	Moderate
22	B.J. McLeod	24.8	22	+2.8	High Confidence
29	Austin Dillon	17.1	29	-11.9	Coinflip
30	David Starr	20.9	30	-9.1	Moderate
36	Timmy Hill	23.9	36	-12.1	High Confidence
38	Riley Herbst	21.4	38	-16.6	High Confidence

Predicted finish from NR-Rating model. Delta = predicted − actual (positive = driver beat prediction). Confidence: High Confidence = low variance (stdDev ≤ 9), Moderate = medium variance, Coinflip = high variance.

Historical Context

Noah Gragson: has 11 career starts at Darlington Raceway with a 11.7 avg finish (2 wins) — the model may have underweighted this track history.
Tyler Reddick: was the model’s top pick based on 21 career starts at Darlington Raceway with a 13.4 avg finish (1 win), finishing P7 on the day.

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Frequently Asked Questions

Who won the 2021 NASCAR Xfinity Series at Darlington?

Noah Gragson won the 2021 NASCAR Xfinity Series at Darlington at Darlington Raceway.

Where was the 2021 NASCAR Xfinity Series at Darlington held?

The 2021 NASCAR Xfinity Series at Darlington was held at Darlington Raceway on September 4, 2021.