NEWTON, Iowa (AP) — William Byron held onto the lead on a late restart to win the NASCAR Truck Series race at Iowa Speedway on Saturday night for his second straight victory. The 18-year-old Byron held off a hard-charging Cole Custer by less than a half-second for his third victory in just nine career starts.

Custer was second, followed by Cameron Hayley, Ben Rhodes and Tyler Reddick. Byron led a race-high 97 laps before a mishap on pit road cost him the top spot. But he rallied to retake the lead and maintained it over the final three laps.

OMAHA, Neb. (AP) — Nathan Bannister matched his career high with 11 strikeouts in seven innings and Arizona capitalized on Miami starter Michael Mediavilla’s rocky first inning a 5-1 victory Saturday night in the College World Series. The Wildcats (45-21), in the CWS for the first time since winning the 2012 national title, will play Oklahoma State on Monday night in a Bracket 1 winners’ game. The No. 3 national seed Hurricanes (50-13) will face UC Santa Barbara in an elimination game that afternoon.

Mediavilla hit two of Arizona’s first five batters and issued a bases-loaded walk before Jared Oliva’s two-run single made it 3-0. Zach Gibbons’ two-run double in the fifth increased the lead to 5-1. Bannister, who made his 13th straight start of at least six innings, confounded Miami batters mixing in his curveball with an upper 80s fastball.

OMAHA, Neb. (AP) — Thomas Hatch threw a complete game, Garrett Benge singled in the only run in the fourth inning and Oklahoma State opened the College World Series with a 1-0 victory over UC Santa Barbara on Saturday. Hatch extended his shutout streak to 26 innings with his fourth complete game and third shutout of the season.

The Cowboys (42-20) will play Monday against Arizona. The Gauchos (42-19-1) will meet Miami, on Monday. Hatch (9-2), a third-round draft pick of the Chicago Cubs, allowed five hits, walked one and struck out seven in his dazzling 112-pitch performance for the Cowboys, who are in the CWS for the first time since 1999.

Santa Barbara starter Shane Bieber (12-4) was just was just about as good as Hatch, limiting the Cowboys to six base hits. Three of them came in succession in the fourth inning, though, and produced Oklahoma State’s only run. Corey Hassel singled to left, Donnie Walton to right and Benge through the middle to make it 1-0. Bieber escaped further damage when Conor Costello lined into a double play and Dustin Williams flew out.

In the ninth, closer Trevor Rosenthal (2-2) hit Robinson Chirinos to load the bases, and then Kevin Siegrist walked Shin-Soo Choo and allowed Desmond’s fly ball to left. Jake Diekman got his second save in as many chances. Shawn Tolleson (1-2) pitched a scoreless eighth to get the win. Cardinals starter Carlos Martinez pitched seven scoreless innings, allowing four hits and a walk. He struck out four and has a 1.23 ERA over his past four starts.