FAYETTEVILLE -- It turns out that all three games in the already-shortened series between the University of Arkansas baseball team and Missouri will go seven innings.

The second-ranked Razorbacks run-ruled the Tigers 21-3 in seven innings Saturday night at Baum-Walker Stadium.

"It wasn't ideal weather," Arkansas Coach Dave Van Horn said. "Thought the grounds crew did a great job giving us an opportunity to play."

It's the most runs the Razorbacks have scored in an SEC game since 1997 and the most under Van Horn.

The opener was originally scheduled for Friday night before severe rain in Fayetteville caused the postponement. Saturday's Game 1, which began at 4 p.m., was also scheduled to be the only game to go the length of the full nine innings. Sunday's doubleheader was changed to seven-inning games.

Instead, Arkansas (28-3, 9-1 SEC) teed off on the Tigers (11-18, 0-10). Sophomore Cam Kozeal -- who erupted offensively last weekend against Vanderbilt, his former team -- finished 4 for 5, reached base in 5 of 6 plate appearances and drove in 5 runs.

"Coach Van Horn actually was joking about it pregame, that this is what it's like -- Nebraska springs," Kozeal said. "It's misty, it's rainy, it's really windy. That's exactly how it is. Growing up in Omaha, you play in a lot of those type of games. ... But yeah, this is how it is in the Midwest."

The one-sided slugfest began with Missouri starter Kaden Jacobi having 38 first-inning pitches. Only 14 were for strikes. Two hit batters and two walks helped the Hogs take a 2-0 lead, while stranding the bases loaded. The lack of command was evident from the get-go, as slabs of mist blew horizontally over the field during the entire game.

Jacobi, who's been battered by SEC offenses all season, totaled 103 pitches in 3 2/3 innings and gave up 8 runs, 4 walks, and struck out 7. The senior's line looked fine heading into the fourth inning and the Tigers gave run support, but Jacobi didn't last. But Brent Iredale's 388-foot homer, as well as two-run singles by Nolan Souza and Justin Thomas Jr., made it 9-2.

All five runs in the fourth came with two outs. The Hogs put up another five in the next inning and capped off the scoring spree with seven runs in the sixth. Four of the seven runs scored on walks or hit batters. Meanwhile, Missouri cycled through pitchers. Its staff threw 102 strikes and 114 balls, walking 14 batters. Nine was the previous high, on March 29 to Texas, in nine innings.

"I think a lot of those walks, they fought for them," Van Horn said when asked about the playing conditions contributing to the free passes. "There were a couple of four-pitch walks, but for the most part, we had a 1-2 (count) walk, a couple of walks where they fouled off a lot of pitches. ... It's good, that's what you want."

Arkansas starter Zach Root was hittable, too. After Root retired the first seven Mizzou batters, Jedier Hernandez, who had the lowest batting average in the lineup, doubled to the gap. Root walked the ninth batter and the leadoff hitter, Keegan Knuston, had an RBI double. Then Kaden Peer hit a chopper to Root that tied it at 2-2 and Knuston demonstratively clapped on base. Root would settle in and went 5 innings, allowing 3 earned runs and striking out 7.

"Zach Root didn't have his best stuff, but he competed really hard," Van Horn said.

Razorback right-handers Dylan Carter and Will McEntire each pitched scoreless frames in relief, retiring the three batters they faced, each striking out two. It marked the McEntire's first outing since the 14-13 home loss to Missouri State on March 25, also the first time the Hogs have played at home since then. They improved 20-1 at home this season.