HAMMOND — After setting a school record by winning its previous 12 games in a row, Southeastern Louisiana didn’t figure to need much help.

But Southern gave it plenty anyway.

The Lions (19-6) extended their winning streak with an 18-2 victory that was stopped by the mercy rule in the middle of the seventh inning Tuesday night at Alumni Field as four Jaguars pitchers walked 11, hit five batters and threw four wild pitches.

“We gave them a lot,” Southern coach Roger Cador said. “Our pitching was just horrible tonight. Psychologically it’s tough when you throw ball after ball after ball.”

The Lions, who host Alcorn State at 2 p.m. Wednesday, scored one run in the first, three in the second, one in the third and four in both the fourth and the fifth and five in the sixth.

The Jaguars (8-14) got solo home runs from Troy Lewis and Marcus Hodge but couldn’t keep up with the Lions. Southern returns to Southwestern Athletic Conference play when it hosts Texas Southern in a three-game series beginning at 6 p.m. Friday.

Southeastern’s hitters chipped in as well, contributing 13 hits and five sacrifice flies. Sam Roberson drove in three runs and Jacob Seward, Daniel Midyett Ryan Byers and Kennon Menard drove in two each.

“We did a good job of adapting,” Lions coach Matt Riser said. “There was supposed to be a zero chance of rain and we come out for batting practice and a black cloud rolls in and we get a big-time rain. But we just worried about controlling the controllables.”

Carlo Graffeo (3-0) got the win in his first start, giving up five hits and two runs in four innings. Gabe Von Rosenberg threw two scoreless innings and Cliff Hurst pitched a perfect seventh.

Lewis led off with his first homer of the season, but the Jaguars missed an opportunity to score more. Robinson Mateo and Ashanti Wheatley followed with consecutive singles before Graffeo advanced them with a wild pitch, then struck out three straight to strand both runners.

“That was huge,” Riser said.

“That took the wind out of our sails,” Cador said.

The Lions answered Lewis’ long ball with small ball in the bottom half. Myles hit Seward, who promptly stole second. Brennan Breaud followed by beating out a dribbler to the mound and Myles threw wildly to first, allowing Seward to score.

After Myles went 2-0 on the next batter, Cador brought in Jarod Jarreau to replace Miles, who had been battling the flu, and he retired the next three batters.

“I didn’t like his body language,” Cador said.

Southeastern took advantage of Jarreau’s wildness in the second, using four walks, a single and two sacrifice flies to take a 4-1 lead, though Jarreau prevented it from being worse by getting Webb Bobo to on a two-out fly ball with the bases loaded.

Joseph Sanchez relieved Jarreau to start the third and he also had control problems, sandwiching two hit batsmen around a single before Menard’s double-play grounder sent a run home.

Hodge hit his first homer of the season with one out in the fourth, but after that the last 11 Jaguars hitters went out in order and Southeastern poured it on against Sanchez, who allowed eight runs (six earned) in two innings, and Bryan Melendez, who allowed six runs in two innings.