BRISTOL, TN – A 17-year-old stole the thunder from the Playoff drivers at Thunder Valley. Driving in a part-time role for GMS Racing, Sam Mayer beat GMS teammate and 2018 NASCAR Gander RV & Outdoors Truck Series champion Brett Moffitt to the finish line by 4.413 seconds to win Thursday night’s UNOH 200 presented by Ohio Logistics at Bristol Motor Speedway. Moffitt led 117 of the 200 laps at the 0.533-mile concrete short track, but, with superior tires for the final run, Mayer passed him for the lead on Lap 171 and pulled away for his first victory in the series. Mayer is the second youngest driver to record a victory in the division. Cole Custer won at New Hampshire as a 16-year-old in 2014. “Oh, my gosh! I love this place. This is win number three for me here,” said Mayer, who scored a pair of victories at Bristol in the K&N Pro Series East. “Man, I don’t know what to say. I can’t thank all the guys at the shop enough. They worked their tails off. We fired off so good. We only made one track bar adjustment all day. Oh, my God, that feels so good.” Mayer knew he had a team capable of winning. His only doubt was his own ability to do the job, but Mayer erased that doubt emphatically. “I just had to come here and perform,” he said. “That last pit stop (after Stage 2) put us in a perfect place, and I was able to drive right by all of them. Man, it’s such a good feeling. We have two more Truck races this year — the momentum is awesome.” Moffitt, who took the Playoff lead with his fourth runner-up finish of the season, came to pit road for the only time after winning Stage 1. As a consequence, Mayer’s tires were 50 laps fresher for the final run. But Moffitt was philosophical. “We need to have four trucks at Phoenix racing for a championship in Phoenix, and this is a good start for us,” Moffitt said. Teammate Sheldon Creed recovered from a pit road speeding penalty to finish 12th and hold second place in the standings. Zane Smith had a fast GMS Chevrolet, too, but faded to 17th in the closing laps. Tyler Ankrum, in the fourth GMS Playoff truck, won Stage 2 but lost track position when instructions to come to pit road after the stage win were obscured by radio chatter. Ankrum recovered to run eighth, and all four GMS Playoff drivers left Bristol above the cut line. After two more races, the Playoff field will be cut from 10 drivers to eight. The two drivers currently below the line are Christian Eckes (13th Thursday) and Todd Gilliland (15th). Smith was baffled by the sudden loss of handling in his No. 21 Silverado. “All of a sudden, with 15 to go, I just wasn’t able to turn,” he said. “It was really bad in (Turns) 1 and 2. Same feeling as a right front (tire) going down or something. I was just waiting to knock down the fence. I just couldn’t turn at all—fading quick.” Regular-season champion Austin Hill had issues, too. Hill’s No. 16 Toyota sustained damage soon after the start of the race, eventually relegating the Hattori Racing Enterprises driver to a 26th-place finish and a scant two-point cushion above the cut line. Race Results 1. (17) Sam Mayer, Chevrolet, 200. 2. (2) Brett Moffitt (P), Chevrolet, 200. 3. (16) Tanner Gray #, Ford, 200. 4. (35) Parker Kligerman, Chevrolet, 200. 5. (9) Chandler Smith, Toyota, 200. 6. (1) Grant Enfinger (P), Ford, 200. 7. (7) Tyler Ankrum (P), Chevrolet, 200. 8. (34) Ross Chastain(i), Chevrolet, 200. 9. (23) Johnny Sauter, Ford, 200. 10. (4) Matt Crafton (P), Ford, 200. 11. (8) Sheldon Creed (P), Chevrolet, 200. 12. (10) Christian Eckes # (P), Toyota, 200. 13. (3) Ben Rhodes (P), Ford, 200. 14. (11) Todd Gilliland (P), Ford, 200. 15. (15) Derek Kraus #, Toyota, 200. 16. (6) Zane Smith # (P), Chevrolet, 199. 17. (21) Carson Hocevar, Chevrolet, 199. 18. (19) Raphael Lessard #, Toyota, 199. 19. (36) Camden Murphy, Chevrolet, 199. 20. (13) Timmy Hill, Chevrolet, 197. 21. (20) Tate Fogleman #, Chevrolet, 197. 22. (26) Clay Greenfield, Toyota, 197. 23. (25) Jordan Anderson, Chevrolet, 197. 24. (27) Danny Bohn, Toyota, 196. 25. (5) Austin Hill (P), Toyota, 195. 26. (31) Josh Bilicki(i), Toyota, 193. 27. (22) Spencer Boyd, Chevrolet, 192. 28. (32) Jennifer Jo Cobb, Chevrolet, 190. 29. (28) Natalie Decker, Chevrolet, 186. 30. (33) Cody Erickson, Chevrolet, 183. 31. (14) Codie Rohrbaugh, Chevrolet, Brakes, 167. 32. (12) Stewart Friesen, Toyota, 167. 33. (18) Austin Wayne Self, Chevrolet, Accident, 153. 34. (30) Norm Benning, Chevrolet, Suspension, 38. 35. (29) Josh Reaume, Toyota, Suspension, 9. 36. (24) Trevor Bayne, Chevrolet, 200. By Reid Spencer, NASCAR Wire Service