Sullivan came to Longwood in the summer of 2024 following one season as an assistant at Eastern Michigan after a successful run at Seton Hill, his alma mater.
He helped the Lancer offense lead the Big South in stolen bases.
In his lone season at EMU, he helped guide the Eagle offense to be one of the top outfits in the MAC. The team boasted a batting average of .300, third in the league, to go with 99 doubles and 12 triples, both second-best in the MAC.
In addition, the Eastern Michigan offense struck out the second-fewest times in the league, and the team stole 78 bases.
At Seton Hill, he helped the team rack up a 161-64 record in his time there. In his final season, the team won a whopping 48 games while winning an NCAA Regional, and he helped Seton Hill win a pair of regional titles during his time in in Greensburg, Pennsylvania.
In 2023, he helped the team win the PSAC Tournament Title in addition to winning the NCAA DII Atlantic Regional and advancing to the NCAA Super Regional. The team also won the western conference of the PSAC.
In 2021, he helped Seton Hill win the western conference of the PSAC and advance to the conference tournament championship game. Seton Hill earned an at-large bid to the NCAA DII Atlantic Regional and promptly swept three games in four days to advance to the NCAA DII World Series.
Sullivan played his final three years of collegiate ball at Seton Hill after playing two seasons at Evansville. At Seton Hill, he started 161 games over his three years, and he was the 2018 PSAC Tournament MVP. He batted .341 in his career there with 40 extra-base knocks and 89 RBI. He earned his bachelor’s degree in sports management before also earning his MBA from Seton Hill a year later in 2018.