GREENVILLE (Interstat) — Jake Armsey went 4 for 4 with a home run and seven RBIs to lead South Carolina Upstate to an 18-4 victory over Elon on Tuesday night.

The Spartans (23-26) erupted for 11 runs in the fourth inning, turning a 7-4 lead into a rout. The Phoenix (19-28) had scored four runs in the top of the first but could not hold the advantage.

Elon opened the game with three hits and a walk. Alex Hall singled home Charlie Hindle, who had walked and stolen second. Nick Fattore singled, but a groundout ended the inning with the Phoenix ahead 4-0.

South Carolina Upstate answered in the bottom of the first. With two outs, Tyler Lang walked, Johnny Sweeney was hit by pitch and Trey Bentley walked. A wild pitch scored Lang, and Armsey doubled down the third-base line to drive in Bentley and Sweeney, cutting the lead to 4-3.

The Spartans took the lead in the second. Hayden Zenor singled and Maloy Heaghney singled. Lang then singled to right field, scoring Zenor and Heaghney to make it 5-4.

Elon threatened in the third but could not score. Upstate padded the lead in the third. Armsey singled, moved to third on a double by Lucas, and scored on a single by Waters, who also drove in Lucas. The Spartans led 7-4.

The game broke open in the fourth. Sweeney hit a two-run homer to right-center, scoring Lang. Armsey doubled home Bentley, then scored on a wild pitch. Waters walked, Ritzer walked, and Zenor singled in a run. Heaghney singled up the middle to drive in two more. Lang doubled, and Armsey capped the inning with a grand slam to center field. The Spartans scored 11 runs on eight hits and three walks in the inning, taking an 18-4 lead.

Armsey’s grand slam was his second home run of the game and gave him seven RBIs. He also had two doubles. Sweeney ended 1 for 3 with a home run and two RBIs. Lang went 3 for 3 with two RBIs and four runs. Heaghney had two hits and two RBIs.

Elon managed only seven hits. Hall singled in the first. Brayden DuRoff drove in a run in the fourth. The Phoenix did not score after the fourth inning.

On the mound, South Carolina Upstate used five pitchers. Cayden Mackey struck out two in a perfect fifth inning. Andrew Kummer allowed two hits and one earned run over two innings. Max Bianchini struck out two in a scoreless third. Juan Reyes struck out one in a perfect seventh.

For Elon, Tyler Johns struck out one in a scoreless sixth inning. Cade Mustard retired three of four batters faced in the fifth.

Tuesday’s game was the fourth straight win for South Carolina Upstate, which swept Gardner-Webb in a three-game series over the weekend. The Spartans have won six of their last eight.

Elon entered Tuesday having won two straight games at William & Mary but fell to 19-28. The Phoenix have lost six of their last eight.

The teams are scheduled to meet again Thursday in Spartanburg, South Carolina, as part of a neutral-site series with Northern Kentucky. South Carolina Upstate hosts Clemson on Tuesday. Elon returns home to face College of Charleston in a three-game series starting Friday.