NASCAR Xfinity Series Charlotte winner is William Byron, full results

William Byron was right at home winning the NASCAR Xfinity Series BetMGM 300 in overtime at Charlotte Motor Speedway on May 24.

The two-time defending Dayton 500 champion driving the No. 17 Hendrick Motorsports Chevy put together a book-end performance dominating early and then holding off defending champion Justin Allgaier, Connor Zilisch and Nick Sanchez on the last-lap.

Byron, a Charlotte native and 14-time NASCAR Cup Series champion, won the first two stages, but had to overcome a pit road speeding penalty forcing him to start from the back in stage three.

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It was Byron’s fifth NASCAR Xfinity Series victory. He was the 2017 Xfinity Series rookie of the year.

Byron will try for the sweep on May 25 in the NASCAR Cup Series Coca-Cola 600 at Charlotte.

Zilisch finished second, Sanchez was third, Allgaier was fourth and Sammy Smith was fifth.

Here are the full results from the NASCAR Xfinity Series Charlotte race.

Who won the NASCAR Xfinity Charlotte race? Winner, race results for the BetMGM 300

Unofficial results from the NASCAR Xfinity Series race on May 24, 2025 at Charlotte Motor Speedway.

1. William Byron, No. 17 Hendrick Motorsports Chevrolet
2. Connor Zilisch, No. 88 JR Motorsports Chevrolet
3. Nick Sanchez, No. 48 Big Machine Racing Chevrolet
4. Justin Allgaier, No. 7 JR Motorsports Chevrolet
5. Sammy Smith, No. 8 JR Motorsports Chevrolet
6. Dean Thompson, No. 26 Sm Hunt Racing Toyota
7. Josh Williams, No. 11 Kaulig Racing Chevrolet
8. Austin Hill, No. 21 Richard Childress Racing Chevrolet
9. Ryan Ellis, No. 71 DGM Racing X JIM Chevrolet
10. Christian Eckes, No. 16 Kaulig Racing Chevrolet
11. Sheldon Creed, No. 00 Haas Factory Team Ford
12. Jesse Love, No. 2 Richard Childress Racing Chevrolet
13. Sam Mayer, No. 41 Haas Factory Team Ford
14. Austin Dillion, No. 3 Boot Barn Chevrolet
15. Ryan Sieg, No. 39 RSS Racing Ford
16. Jeremy Clements, No. 51 Jeremy Clements Racing Chevrolet
17. William Sawalich, No. 18 Joe Gibbs Racing Toyota
18. Carson Kvapil, No. 1 JR Motorsports Chevrolet
19. Kris Wright, No. 5 Our Motorsports Chevrolet
20. Brandon Jones, No. 20 Joe Gibbs Racing Toyota
21. Jeb Burton, No. 27 Jordan Anderson Racing Chevrolet
22. Harrison Burton, No. 25 AM Racing Ford
23. Brennan Poole, No. 40 Alpha Prime Racing Chevrolet
24. Chase Briscoe, No. 19 Joe Gibbs Racing Toyota
25. Blaine Perkins, No. 31 Jordan Anderson Racing Chevrolet
26. Anthony Alfredo, No. 42 Young’s Motorsports Chevrolet
27. Garrett Smithley, No. 14 SS GreenLight Racing Chevrolet
28. Nick Leitz, No. 07 SS GreenLight Racing Chevrolet
29. J.J. Yeley, No. 29 RSS Racing Ford
30. C.J. McLaughlin, No. 91 DGM Racing Chevrolet
31.  Taylor Gray, No. 54 Joe Gibbs Racing Toyota
32. Daniel Dye, No. 10 Kaulig Racing Chevrolet
33. Leland Honeyman, No. 70 Cope Family Racing Chevrolet
34. Kyle Sieg, No. 28 RSS Racing Ford
35. Katherine Legge, No. 32 Jordan Anderson Racing Chevrolet
36. Brad Perez, No. 45 Alpha Prime Racing Chevrolet
37. Matt DiBenedetto, No. 99 Viking Motorsports Chevrolet
38. Parker Retzlaff, No. 4 Alpha Prime Racing Chevrolet