OMAHA, Neb. — Coastal Carolina advanced to the College World Series finals with a 11-3 victory over Louisville on Wednesday, scoring five of its six first-inning runs before making an out and extending its win streak to 26 games.

The Chanticleers (56-11) will play LSU in the best-of-3 finals starting Saturday. They are going for their second national championship in two all-time appearances in Omaha. They won their first in 2016.

“To do what we did today versus that team, as well coached as that team is, is really amazing,” coach Kevin Schnall said. “The Chanticleers are one of two teams in the entire country still playing. It’s incredible, but it’s not unbelievable. And it’s not unbelievable because we’ve got really good players, really good players.”

Louisville (42-24) started left-hander Colton Hartman, primarily a reliever who hadn’t appeared in a game since May 17. He didn’t last long.

Caden Bodine singled leading off and Sebastian Alexander and Blake Barthol were hit by pitches to load the bases. Walker Mitchell punched a ball into right field to bring in two runs, and then Hartman issued a four-pitch walk.

Out went Hartman (2-1) and in came Jake Schweitzer. Colby Thorndyke greeted him with his second bases-clearing double in two games to make it 5-0. Thorndyke came home on Ty Dooley’s one-out single and finished 3 for 4 with five RBIs.

“We always preach when the bases are loaded, the pressure is on the pitcher,” Thorndyke said. “It’s not on the hitter. He’s got to throw three strikes. If he throws four balls then it’s a run.”

The Chanticleers padded their lead with Pete Mihos’ two-run triple in the fifth and two more runs in the sixth. Coastal Carolina is 43-0 when leading after six innings.

The Chanticleers made an impressive run through their bracket, beating Arizona 7-4 and Oregon State 6-2 before eliminating the Cardinals.

“These guys, ooh, they’ve done it in the last half of the season, in the conference tournament, in the regionals, in supers, in Omaha, against, as we say, the best teams,” Louisville coach Dan McDonnell said. “It’s impressive what they’ve done.”

LSU 6, Arkansas 5: Jared Jones hit a line drive that glanced off a glove for the winning run moments after LSU got a big break to tie the game, and the Tigers posted a 6-5 walk-off victory over SEC rival Arkansas to advance to the CWS finals.

The Tigers (51-15) will play for their second national championship in three years.

Arkansas (50-15) took a two-run lead in the top of the ninth on Justin Thomas’ tiebreaking single and looked ready to force a second bracket final against the Tigers today. Instead, the Razorbacks’ season ended in heartbreak in Omaha again.

The Tigers beat Arkansas for the fourth time in five meetings this season, including 4-1 Saturday in the teams’ CWS opener. They are 5-0 all-time in CWS meetings with the Razorbacks.

LSU put two men on base with one out in the bottom of the ninth against Cole Gibler. Steven Milam grounded to short, and Wehiwa Aloy opted to get the lead runner at third rather than try for a game-ending double play.

Luis Hernandez then came up and sent a hard liner to left. Charles Davalan slipped as he broke for the ball and it deflected off his right shoulder. Davalan chased the ball down as Ethan Frey and Milam scored easily.

Jones, whose team-best 22nd homer of the season tied it 3-all in the eighth, shot a line drive up the middle that bounced off second baseman Cam Kozeal’s glove, and Hernandez scored from second ahead of the throw home, setting off an LSU celebration in center field.