Ross Lee Chastain[1][2] (born December 4, 1992) is an American professional stock car racing driver.

66 Turn One Racing entry in the NASCAR Camping World Truck Series after Justin Marks vacated the seat.

[16] Chastain also came close to the win at the penultimate race at Phoenix, finishing second to Erik Jones after leading over 60 laps.

[9] Leaving BKR after the 2013 season, Chastain moved to RBR Enterprises for a part-time schedule in the NASCAR Camping World Truck Series for 2014.

[18] Chastain later drove for Hattori Racing Enterprises at Michigan International Speedway, replacing Johnny Sauter.

[23] Chastain's 2017 Xfinity season was the best of his career, scoring a top-five at Iowa and two top tens as well as finishing 13th in points, the highest of the non-playoff drivers.

A crew member from JD Motorsports teammate Garrett Smithley was taken to the hospital with a head injury after the fight.

On pit road after the race, Gase swerved his car toward Chastain with spectators and crew members in the vicinity.

[37] Chastain had previously met the CEO of DC Solar at Auto Club Speedway in 2018, and plans materialized from there.

Chip Ganassi then responded on Twitter, defending Chastain's performance and stating that he "helped himself to many future opportunities".

"[46] Chastain, for his part, finished 25th after repairs and called running up front "cool" and also saying "I don't care what Harvick says.

After running a race with JD Motorsports at Indianapolis, Chastain returned to CGR for the DC Solar 300 at Las Vegas Motor Speedway.

[49][50] Once again the class of the field, Chastain led all but twenty of the 200 laps in the race and prevailed over Justin Allgaier for the victory, his first in over 200 starts in NASCAR.

[51] In a post-race media conference, he admitted to getting emotional in the closing laps of the race due to the gravity of the win.

[54] Chastain fell out of the playoffs after the opening round after Matt Tifft made a late-race rally at Dover, claiming the final spot by three points.

[55] Towards the latter part of the 2018 season, Chastain joined Niece Motorsports for some NASCAR Camping World Truck Series races.

4 JD Motorsports ride for 30 races, replacing Blake Koch, who stepped away to focus on business ventures.

[65] On May 10, 2019, Chastain won his first career NASCAR Gander Outdoors Truck Series race in the 2019 Digital Ally 250 at Kansas Speedway.

[68] In June's M&M's 200 at Iowa, Chastain led 141 of 200 laps and swept the stages to score the win, but his truck failed post-race inspection and his victory was forfeited to Brett Moffitt under NASCAR's newly-introduced disqualification policy.

Chastain was the first driver to have a win revoked since Dale Jarrett was disqualified from a Busch Series race in 1995, relegated to last in the official standings.

[70] He earned redemption the following week in Gateway's CarShield 200, however, leading 21 laps and scoring the victory after taking only fuel and no tires on his final pit stop.

[72][73] Chastain later won at Pocono Raceway in the Truck Series in commanding fashion, dedicating his win to Kaulig crew chief Nick Harrison, who had died the previous week.

[76] Chastain earned his second top-five of 2019 when he finished second to Christopher Bell at Texas Motor Speedway in November, leading 29 laps.

[80] Chastain failed to qualify for the Xfinity season opener at Daytona after mechanical issues plagued his car.

[82] On February 19, 2020, Roush Fenway Racing announced Chastain as the replacement driver for an injured Ryan Newman in the team's No.

[91] At the 2022 NASCAR All-Star Race, Chastain finished 22nd after going airborne from colliding with Kyle Busch, taking Chase Elliott out in the process.

At the restart, Elliott pushed Chastain towards the wall while Hamlin made a tight pass to once again express his frustration.

[96] In October, Chastain for the Championship 4 by a thin margin at 2022 Xfinity 500 held at the Martinsville Speedway, where he, in tenth place on the last lap of the race, drove his car into the outside wall of the track in Turns 3 and 4 to pick up the unprecedented speed of up to 130 miles per hour (210 km/h), overtaking Hamlin and four other drivers to finish in fifth place.

[98] Chastain said that the move was inspired by playing the video game NASCAR 2005 on the GameCube as a kid with his brother Chad.

[104] He was eliminated from the Round of 12 at the conclusion of the Charlotte Roval race,[105] but won the season finale at Phoenix and finished ninth in the points standings.