Senior guard Jonathan Rojas led the Lightning with 20 points, while pulling down 11 rebounds, and junior Miguel Jorge finished with 14 points, and 8 rebounds.
Jorge, converted a key basket to give Lehman, a 72-71 lead, which the Lightning would not relinquish. With the game clock expiring, Medgar Evers had several opportunities, but could not convert for the victory.
Medgar Evers was led by Sidney Jackson, who finished with 23 points, and Verdayane Townsend, who finished with 24 rebounds.
Up next for Lehman is a non-conference match-up with Polytechnic University, Tuesday night on the road. The Lightning will embark on the 39th Annual CUNY Con Edison Tournament, next Saturday, at York College.