NASCAR Xfinity Series at New Hampshire

New Hampshire Motor Speedway — July 15, 2023

John Hunter Nemechek
Winner
206
Laps
38
Entries
7
Leaders

John Hunter Nemechek won the 2023 NASCAR Xfinity Series at New Hampshire at New Hampshire Motor Speedway on July 15, 2023, leading 137 of 206 laps. Chandler Smith finished second; Austin Hill rounded out the podium. The race featured 7 different leaders.

Race Details
Date
Saturday, July 15, 2023
Season
2023
Leaders
7 drivers
Pos Start +/- Driver
1 2 +1 John Hunter Nemechek
2 1 -1 Chandler Smith
3 8 +5 Austin Hill
4 11 +7 Daniel Hemric
5 7 +2 Sammy Smith
6 4 -2 Justin Allgaier
7 20 +13 Jeb Burton
8 22 +14 Josh Williams
9 12 +3 Brett Moffitt
10 33 +23 Mason Massey
11 5 -6 Brandon Jones
12 21 +9 Alex Labbe
13 38 +25 Kaz Grala
14 28 +14 Patrick Emerling
15 16 +1 Jeremy Clements
16 9 -7 Austin Dillon
17 3 -14 Josh Berry
18 10 -8 Sam Mayer
19 29 +10 Ryan Ellis
20 14 -6 Riley Herbst
21 17 -4 Sheldon Creed
22 6 -16 Cole Custer
23 26 +3 Kyle Sieg
24 24 Brennan Poole
25 32 +7 Blaine Perkins
26 25 -1 Connor Mosack
27 23 -4 Kyle Weatherman
28 35 +7 C.J. McLaughlin
29 19 -10 Joe Graf Jr.
30 31 +1 Chris Hacker
31 13 -18 Parker Retzlaff
32 15 -17 Parker Kligerman
33 37 +4 Ryan Sieg
34 18 -16 Anthony Alfredo
35 34 -1 Chad Finchum
36 30 -6 Stefan Parsons
37 27 -10 Rajah Caruth
38 36 -2 Greg Van Alst
Model Performance

How well did the NR-Rating model predict this race? Across 10 matched drivers, the model averaged 8.0 positions off — close to the season average of 8.5. Average

Pos Driver Predicted Actual Delta
1 John Hunter Nemechek 20.1 1 +19.1
3 Austin Hill 20.2 3 +17.2
6 Justin Allgaier 17.7 6 +11.7
16 Austin Dillon 17.0 16 +1.0
17 Josh Berry 19.0 17 +2.0
20 Riley Herbst 22.1 20 +2.1
22 Cole Custer 23.0 22 +1.0
24 Brennan Poole 23.1 24 -0.9
34 Anthony Alfredo 22.0 34 -12.0
35 Chad Finchum 22.1 35 -12.9

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

  • John Hunter Nemechek: has 9 career starts at New Hampshire Motor Speedway with a 13.6 avg finish (1 win) — the model may have underweighted this track history.
  • Austin Dillon: was the model’s top pick based on 25 career starts at New Hampshire Motor Speedway with a 13.0 avg finish (1 win), finishing P16 on the day.

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Frequently Asked Questions

Who won the 2023 NASCAR Xfinity Series at New Hampshire?
John Hunter Nemechek won the 2023 NASCAR Xfinity Series at New Hampshire at New Hampshire Motor Speedway.
Where was the 2023 NASCAR Xfinity Series at New Hampshire held?
The 2023 NASCAR Xfinity Series at New Hampshire was held at New Hampshire Motor Speedway on July 15, 2023.