Loop Data Box Score

The post-race loop data for the 2023 United Rentals 500 at Phoenix Raceway includes in-depth driver stats, average speeds, and key performance metrics from the NASCAR CUP Series race.

United Rentals 500

Sunday, March 12th, 2023

Phoenix Raceway, Phoenix, AZ

  • 16 Chevrolet
  • 14 Ford
  • 6 Toyota

  • Phoenix Raceway
  • United Rentals Work United 500
  • Busch Pole Award Pole Winner: Kyle Larson
  • Age: 30
  • Team : No. 5 - HendrickCars.com Chevrolet
  • Owner: Rick Hendrick
  • Crew Chief: Cliff Daniels
  • Kyle Larson won the Pole Award for the United Rentals Work United 500 with a lap of 27.642 seconds, 130.237 mph.
  • This is his 15th pole in 299 NASCAR Cup Series races.
  • This is his first pole and third top-10 start in 2023.
  • This is his second pole in 18 races at Phoenix Raceway.
  • Denny Hamlin (second) posted his first top-10 start of 2023 and his 22nd in 36 races at Phoenix Raceway.
  • William Byron (third) posted his sixth top-10 start at Phoenix Raceway. It is his second in four races this season.
  • Ty Gibbs (14th) was the fastest qualifying rookie.

  • Sunday, March 12th, 2023
  • NASCAR Wire Service - Reid Spencer
Late caution - again - lifts William Byron to NASCAR Cup victory at Phoenix

Kyle Larson and Kevin Harvick hate late-race cautions.

William Byron loves them.

After a two-tire call under the fourth caution flag in Sunday’s United Rentals Work United 500 at Phoenix Raceway, Byron surged past Hendrick Motorsports teammate Kyle Larson in overtime to win his second straight NASCAR Cup Series race.

Byron can thank Ford drivers Aric Almirola and Harrison Burton, who on successive weekends spun with a handful of laps left—at Las Vegas and Phoenix, respectively—and gave Byron a chance to capitalize on the opportunity.

As a result, Byron had his second victory of the season and a guaranteed ticket into the Cup Series Playoff. The driver of the No. 24 Chevrolet won for the first time at Phoenix and for the sixth time in his career.

Byron credited crew chief Rudy Fugle with the two-tire call that got him out front with a chance to win.

"Owe the last couple weeks to him," said Byron, who also won at Las Vegas on two fresh tires. "He’s done a really good job strategy-wise, and execution-wise we’ve done a good job to put ourselves in those positions on the front row with a shot at the end.

"Thanks to everybody back at Hendrick Motorsports, putting together great cars, doing a great job.This is a big credit to them, engine shop, (team owner Rick) Hendrick, everybody."

Harvick leaves his best track with a mountain of frustration as tall as spectator-friendly Rattlesnake Hill at the east end of the 1.0-mile speedway. That he posted his 20th straight top 10 at Phoenix—a NASCAR Cup record for a single track—was of scant consolation.

"It’s what I would have done," Harvick said of crew chief Rodney Childers’ four-tire call. "I’d always rather be on offense. I just didn’t get a couple cars when that first caution came out. Kind of lost our chance. Still thought I had a chance there at the end. Those cars were quite a bit slower. They get all jammed up.

"That’s the way it goes. Just smoked ’em up until the caution. They did a great job with our Hunt Brothers Pizza Ford Mustang. Didn’t need the caution at the end."

Harvick had a commanding lead when Burton spun at the start/finish line on Lap 302 of 312. Harvick took four new tires on the ensuing pit stop but came out seventh behind Larson, Byron, Ryan Blaney, Ross Chastain, Kyle Busch and Denny Hamlin—all of whom opted for two tires.

Larson took the lead on a Lap 310 restart, but an accident on the backstretch involving Noah Gragson, Ty Gibbs and AJ Allmendinger forced overtime, and Byron grabbed the lead after the restart on Lap 316.

Blaney and Tyler Reddick, who had taken four tires, also got past Larson during the two-lap overtime to finish second and third, with Larson holding fourth. Harvick came home fifth after leading 36 laps.

For the first two stages, it appeared Larson and Byron would decide the race between them. Byron grabbed the lead from his teammate on Lap 2 and held it thought the end of Stage 1 on Lap 60. During the stage break, Larson regained the top spot under caution, taking advantage of the No. 1 pit stall he earned for winning the pole on Saturday.

Larson dominated the second stage on the way to leading a race-high 201 laps. But Harvick beat Byron off pit road for the second position during the Stage 2 break and kept Larson in his sights. After an exchange of green-flag pit stops that saw Harvick gain considerable ground, Harvick closed on Larson.

With NASCAR’s new lower-downforce competition package in use for the first time, the driver of the No. 5 Chevrolet struggled in traffic, and Harvick closed in. When Larson had difficulty passing Justin Haley and Austin Cindric in succession, Harvick was on his bumper.

On Lap 269, Harvick made the pass for the lead and pulled away to an advantage of nearly four seconds before Burton’s spin slowed the field.

Though Larson held the lead after one late restart, the second time proved the charm for Byron. For the second straight week Larson was frustrated. At Las Vegas, he lost a big lead when Almirola hit the wall. At Phoenix, he was mad at himself.

"Restarts are just tough," Larson said. "I felt like I ran William up pretty high. I was expecting him to lose some grip. But he did a really good job of holding it to my outside, clearing me down the back.

"Yeah, I’m pissed off. Great fight by the team, great car—way better than we were here last year. Yeah, I mean, it’s a long season, but hopefully we’re in the Final 4 (Championship 4 race) when we come back here in November and can have a run similar to that with speed and try to execute a little bit better at the end."

Christopher Bell ran sixth, and defending race winner Chase Briscoe finished seventh after a slow start. Kyle Busch was eighth, and Hendrick drivers Alex Bowman and Josh Berry (subbing for injured Chase Elliott) were ninth and 10th.

Chevrolet drivers have won all four Cup races this season.

  • Drivers Entered: 36
  • Laps Scheduled: 312
  • Laps Actual: 317 - NASCAR OVERTIME!
  • Margin of Victory: 0.330 Seconds
  • Time of Race: 3 Hours 0 Minutes 18 Seconds
  • Average Speed: 105.491
  • Cautions: 5 for 35 laps
  • Lead Changes: 10
  • Green Flag Passes: 2,584 (9.2 passes per green flag lap)

  • Phoenix Raceway
  • United Rentals Work United 500
  • Race Winner: William Byron
  • Age: 25
  • Team : No. 24 - Valvoline Chevrolet
  • Owner: Rick Hendrick
  • Crew Chief: Rudy Fugle
  • William Byron won the United Rentals Work United 500, his sixth victory in 184 Cup Series races.
  • This is his second victory and second top-10 finish in 2023.
  • This is his first victory and sixth top-10 finish in 11 races at Phoenix Raceway.
  • Ryan Blaney (second) posted his 10th top-10 finish in 15 races at Phoenix Raceway. It is his second top-10 finish in 2023.
  • Tyler Reddick (third) posted his second top-10 finish in seven races at Phoenix Raceway.
  • Ty Gibbs (28th) was the highest finishing rookie.
  • Alex Bowman leads the point standings by 3 points over Kevin Harvick.
Kyle Larson and Denny Hamlin lead the field on a pace lap
Avondale, Arizona - March 12, 2023 : Kyle Larson, driver of the #5 HendrickCars.com Chevrolet, and Denny Hamlin, driver of the #11 Shingrix Toyota, lead the field on a pace lap prior to the NASCAR Cup Series United Rentals Work United 500 at Phoenix Raceway.
Meg OliphantGetty Images
United Rentals 500 at Phoenix Raceway : Loop Data Box Score results
DRIVER ST MID CLO FIN HI LOW ARP PL DIF GFP GFxP PD QPS % QPS FST % T15 LED % LED LAPS DR TOT PTS
William Byron 3 2 4 1 1 15 2.5 2 34 32 2 14 41.18 47 100.0 64 20.2 317 131.40 59
Ryan Blaney 8 9 6 2 2 18 7.5 6 71 63 8 40 56.34 11 99.4 0 0.0 317 102.50 43
Tyler Reddick 12 7 5 3 2 17 6.9 9 84 63 21 57 67.86 15 99.7 0 0.0 317 105.30 46
Kyle Larson 1 1 2 4 1 14 1.4 -3 29 34 -5 9 31.03 54 100.0 201 63.4 317 139.00 52
Kevin Harvick 15 3 1 5 1 17 5.1 10 62 47 15 40 64.52 49 98.4 36 11.4 317 116.00 43
Christopher Bell 5 6 3 6 3 19 4.8 -1 62 56 6 41 66.13 19 99.7 0 0.0 317 111.80 43
Chase Briscoe 24 12 8 7 5 24 12.9 17 110 98 12 62 56.36 9 69.4 0 0.0 317 87.10 31
Kyle Busch 9 20 12 8 3 24 13.9 1 76 90 -14 35 46.05 4 71.0 0 0.0 317 83.40 30
Alex Bowman 18 10 11 9 8 20 12.4 9 79 70 9 36 45.57 1 82.0 0 0.0 317 86.60 28
Josh Berry 17 15 16 10 9 28 18.4 7 119 116 3 32 26.89 3 20.8 0 0.0 317 71.20 0
Joey Logano 16 16 15 11 8 25 17.7 5 87 89 -2 22 25.29 2 30.0 0 0.0 317 73.60 26
Ryan Preece 25 17 17 12 3 28 18.9 13 114 103 11 20 17.54 0 9.2 0 0.0 317 66.20 25
Michael McDowell 7 22 13 13 2 25 15.9 -6 94 97 -3 38 40.43 2 56.8 0 0.0 317 77.30 24
Bubba Wallace 19 11 20 14 1 24 16.6 5 114 99 15 29 25.44 0 36.9 0 0.0 317 74.70 23
Chris Buescher 21 13 14 15 5 22 12.6 6 98 86 12 53 54.08 0 94.6 0 0.0 317 80.70 22
Austin Dillon 30 24 21 16 15 33 25.3 14 89 78 11 2 2.25 0 0.3 0 0.0 317 52.30 21
Martin Truex Jr 13 18 18 17 11 24 18.0 -4 90 90 0 6 6.67 0 9.8 0 0.0 317 66.70 20
Brad Keselowski 4 4 7 18 1 20 6.3 -14 50 65 -15 29 58.00 6 97.2 1 0.3 317 92.30 28
Ricky Stenhouse Jr 23 28 24 19 17 34 25.6 4 107 102 5 1 0.93 9 0.0 0 0.0 317 55.90 18
AJ Allmendinger 22 23 19 20 12 26 21.6 2 73 76 -3 3 4.11 0 0.6 0 0.0 317 56.00 17
Erik Jones 10 21 23 21 1 26 17.9 -11 80 88 -8 16 20.00 11 30.3 14 4.4 317 61.70 16
Daniel Suarez 11 14 27 22 2 29 15.2 -11 73 91 -18 33 45.21 2 77.6 0 0.0 317 77.10 15
Denny Hamlin 2 5 9 23 2 24 5.8 -21 56 80 -24 23 41.07 13 98.7 0 0.0 317 93.50 26
Ross Chastain 6 8 10 24 1 24 8.5 -18 71 95 -24 46 64.79 7 98.7 1 0.3 317 82.50 19
Austin Cindric 20 27 26 25 19 35 26.8 -5 63 68 -5 0 0.00 1 0.0 0 0.0 316 48.10 12
Corey Lajoie 28 26 25 26 24 34 27.2 2 84 93 -9 0 0.00 2 0.0 0 0.0 316 40.60 11
Justin Haley 26 29 29 27 25 34 28.5 -1 66 69 -3 0 0.00 0 0.0 0 0.0 316 41.00 10
Ty Gibbs 14 19 22 28 10 29 19.3 -14 69 78 -9 17 24.64 2 18.3 0 0.0 316 56.00 9
Noah Gragson 32 25 28 29 24 32 27.0 3 91 89 2 0 0.00 1 0.0 0 0.0 316 43.10 8
Ty Dillon 35 31 31 30 27 36 31.7 5 54 48 6 0 0.00 0 0.0 0 0.0 315 33.20 7
Zane Smith 34 33 30 31 28 36 30.8 3 47 41 6 0 0.00 1 0.0 0 0.0 315 32.60 0
Todd Gilliland 29 32 33 32 27 34 32.8 -3 38 45 -7 0 0.00 0 0.0 0 0.0 314 29.20 5
Aric Almirola 31 35 34 33 9 35 28.9 -2 73 57 16 3 4.11 4 0.6 0 0.0 313 47.40 4
Cody Ware 36 34 35 34 33 36 34.7 2 13 14 -1 0 0.00 0 0.0 0 0.0 311 26.00 3
Harrison Burton 27 30 32 35 22 35 31.0 -8 60 68 -8 0 0.00 1 0.0 0 0.0 310 32.10 2
BJ McLeod 33 36 36 36 33 36 36.0 -3 4 7 -3 0 0.00 0 0.0 0 0.0 50 23.20 1