Instacart 500

Phoenix Raceway — March 14, 2021

Martin Truex, Jr.
Winner
312
Laps
21
Entries
9
Leaders

Martin Truex, Jr. won the 2021 Instacart 500 at Phoenix Raceway on March 14, 2021, leading 64 of 312 laps. Joey Logano finished second; Denny Hamlin rounded out the podium. The race featured 9 different leaders.

Race Details
Date
Sunday, March 14, 2021
Season
2021
Leaders
9 drivers
Pos Start +/- Driver
1 1 Martin Truex, Jr.
2 9 +7 Joey Logano
3 2 -1 Denny Hamlin
4 15 +11 Brad Keselowski
5 8 +3 Chase Elliott
6 5 -1 Kevin Harvick
7 4 -3 Kyle Larson
8 3 -5 William Byron
9 11 +2 Christopher Bell
10 7 -3 Ryan Blaney
11 32 +21 Aric Almirola
12 20 +8 Ricky Stenhouse Jr.
13 16 +3 Alex Bowman
14 18 +4 Matt DiBenedetto
15 28 +13 Kurt Busch
16 22 +6 Bubba Wallace
17 14 -3 Austin Dillon
18 10 -8 Chris Buescher
19 19 Ross Chastain
20 23 +3 Erik Jones
27 26 -1 Corey LaJoie
Stage Results
Driver Stage 1 Stage 2 Stage 3 Stage Pts
Kyle Larson 1 1 20
Chase Elliott 4 2 16
Denny Hamlin 2 5 15
William Byron 6 4 12
Kevin Harvick 5 6 11
Alex Bowman 8 3 11
Ryan Blaney 3 16 8
Joey Logano 7 18 4
Brad Keselowski 10 8 4
Kurt Busch 12 7 4
Austin Dillon 11 9 2
Chris Buescher 9 15 2
Model Performance

How well did the NR-Rating model predict this race? Across 17 matched drivers, the model averaged 4.3 positions off — better than the season average of 8.5. Excellent

Pos Driver Predicted Actual Delta
1 Martin Truex, Jr. 13.8 1 +12.8
2 Joey Logano 12.1 2 +10.1
3 Denny Hamlin 6.8 3 +3.8
4 Brad Keselowski 12.0 4 +8.0
5 Chase Elliott 8.3 5 +3.3
7 Kyle Larson 8.6 7 +1.6
8 William Byron 10.3 8 +2.3
9 Christopher Bell 8.6 9 -0.4
10 Ryan Blaney 6.8 10 -3.2
12 Ricky Stenhouse Jr. 20.1 12 +8.1
13 Alex Bowman 14.0 13 +1.0
16 Bubba Wallace 14.0 16 -2.0
17 Austin Dillon 17.0 17 0.0
18 Chris Buescher 10.3 18 -7.7
19 Ross Chastain 13.8 19 -5.2
20 Erik Jones 17.7 20 -2.3
27 Corey LaJoie 24.9 27 -2.1

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

  • Martin Truex, Jr.: has 17 career starts at Phoenix Raceway with a 11.8 avg finish (1 win) — the model may have underweighted this track history.
  • Denny Hamlin: was the model’s top pick based on 29 career starts at Phoenix Raceway with a 11.5 avg finish (1 win), finishing P3 on the day.

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Frequently Asked Questions

Who won the 2021 Instacart 500?
Martin Truex, Jr. won the 2021 Instacart 500 at Phoenix Raceway driving for Joe Gibbs Racing.
Where was the 2021 Instacart 500 held?
The 2021 Instacart 500 was held at Phoenix Raceway on March 14, 2021.