# NASCAR Xfinity Series at Auto Club Speedway

Stock car racing events in the NASCAR Xfinity Series were held at the Auto Club Speedway in Fontana, California from the track's inauguration in 1997 until 2023. The 300-mile (480 km) event was previously named Production Alliance Group 300 for sponsorship reasons most recently in 2023. The race was usually scheduled in late March as the fifth event of the schedule and as a support event for the NASCAR Cup Series' Auto Club 400. It was previously been held in October and late April or early May. John Hunter Nemechek was the last winner of the event, after winning it in 2023.
A second race at the track was also held during the fall as support to the Cup fall race from 2004 until the track lost its second Cup date after 2010.
No races have been held since 2023, as the track is currently undergoing demolition of the 2-mile oval.

## Past winners

| Year | Date | No. | Driver | Team | Manufacturer | Race Distance | Race Distance | Race Time | Average Speed (mph) | Ref |
| Year | Date | No. | Driver | Team | Manufacturer | Laps | Miles (km) | Race Time | Average Speed (mph) | Ref |
| 1997 | October 19 | 36 | Todd Bodine | Team 34 | Pontiac | 150 | 300 (482.803) | 2:04:04 | 145.083 | |
| 1998 | July 19 | 3 | Dale Earnhardt Jr. | Dale Earnhardt, Inc. | Chevrolet | 150 | 300 (482.803) | 2:01:09 | 148.576 | |
| 1999 | May 1 | 17 | Matt Kenseth | Reiser Enterprises | Chevrolet | 150 | 300 (482.803) | 2:30:03 | 119.96 | |
| 2000 | April 29 | 17 | Matt Kenseth | Reiser Enterprises | Chevrolet | 150 | 300 (482.803) | 2:22:25 | 126.375 | |
| 2001 | April 28 | 36 | Hank Parker Jr. | Cicci-Welliver Racing | Chevrolet | 150 | 300 (482.803) | 1:55:25 | 155.957 | |
| 2002 | April 27 | 10 | Scott Riggs | ppc Racing | Ford | 150 | 300 (482.803) | 2:16:59 | 131.403 | |
| 2003 | April 26 | 17 | Matt Kenseth | Reiser Enterprises | Ford | 150 | 300 (482.803) | 2:19:05 | 129.419 | |
| 2004 | May 1 | 60 | Greg Biffle | Roush Racing | Ford | 150 | 300 (482.803) | 2:09:31 | 138.978 | |
| 2004 | September 4 | 60 | Greg Biffle | Roush Racing | Ford | 150 | 300 (482.803) | 2:01:45 | 147.844 | |
| 2005 | February 26 | 9 | Mark Martin | Roush Racing | Ford | 150 | 300 (482.803) | 2:33:31 | 117.251 | |
| 2005 | September 3 | 60 | Carl Edwards | Roush Racing | Ford | 150 | 300 (482.803) | 2:09:24 | 139.104 | |
| 2006 | February 25 | 16 | Greg Biffle | Roush Racing | Ford | 150 | 300 (482.803) | 2:02:02 | 147.501 | |
| 2006 | September 2 | 9 | Kasey Kahne | Evernham Motorsports | Dodge | 150 | 300 (482.803) | 2:12:26 | 135.917 | |
| 2007 | February 24 | 17 | Matt Kenseth | Roush Fenway Racing | Ford | 150 | 300 (482.803) | 2:20:46 | 127.871 | |
| 2007 | September 1 | 29 | Jeff Burton | Richard Childress Racing | Chevrolet | 150 | 300 (482.803) | 2:21:02 | 127.629 | |
| 2008 | February 25* | 20 | Tony Stewart | Joe Gibbs Racing | Toyota | 150 | 300 (482.803) | 2:06:58 | 141.769 | |
| 2008 | August 30 | 18 | Kyle Busch | Joe Gibbs Racing | Toyota | 150 | 300 (482.803) | 2:04:49 | 144.212 | |
| 2009 | February 21 | 18 | Kyle Busch | Joe Gibbs Racing | Toyota | 150 | 300 (482.803) | 2:11:13 | 137.178 | |
| 2009 | October 10 | 20 | Joey Logano | Joe Gibbs Racing | Toyota | 152* | 304 (489.24) | 2:29:17 | 122.184 | |
| 2010 | February 20 | 18 | Kyle Busch | Joe Gibbs Racing | Toyota | 152* | 304 (489.24) | 2:06:46 | 143.886 | |
| 2010 | October 9 | 18 | Kyle Busch | Joe Gibbs Racing | Toyota | 150 | 300 (482.803) | 2:25:33 | 123.669 | |
| 2011 | March 26 | 18 | Kyle Busch | Joe Gibbs Racing | Toyota | 150 | 300 (482.803) | 2:07:52 | 140.772 | |
| 2012 | March 24 | 18 | Joey Logano | Joe Gibbs Racing | Toyota | 150 | 300 (482.803) | 2:06:28 | 142.33 | |
| 2013 | March 23 | 54 | Kyle Busch | Joe Gibbs Racing | Toyota | 150 | 300 (482.803) | 2:07:11 | 141.528 | |
| 2014 | March 22 | 42 | Kyle Larson | Turner Scott Motorsports | Chevrolet | 150 | 300 (482.803) | 2:05:03 | 143.942 | |
| 2015 | March 21 | 88 | Kevin Harvick | JR Motorsports | Chevrolet | 150 | 300 (482.803) | 2:01:51 | 147.723 | |
| 2016 | March 19 | 2 | Austin Dillon | Richard Childress Racing | Chevrolet | 150 | 300 (482.803) | 2:05:52 | 143.008 | |
| 2017 | March 25 | 42 | Kyle Larson | Chip Ganassi Racing | Chevrolet | 150 | 300 (482.803) | 2:34:00 | 116.883 | |
| 2018 | March 17 | 22 | Joey Logano | Team Penske | Ford | 150 | 300 (482.803) | 2:21:25 | 127.283 | |
| 2019 | March 16 | 00 | Cole Custer | Stewart-Haas Racing with Biagi-DenBeste | Ford | 150 | 300 (482.803) | 2:17:43 | 130.703 | |
| 2020 | February 29 | 20 | Harrison Burton | Joe Gibbs Racing | Toyota | 150 | 300 (482.803) | 2:28:15 | 121.417 | |
| 2021* | Not held | Not held | Not held | Not held | Not held | Not held | Not held | Not held | Not held | |
| 2022 | February 26 | 07 | Cole Custer | SS-Green Light Racing | Ford | 165* | 330 (531.083) | 3:05:05 | 105.682 | |
| 2023 | February 26* | 20 | John Hunter Nemechek | Joe Gibbs Racing | Toyota | 150 | 300 (482.803) | 2:35:53 | 115.471 | |