The 2018–19 GenSan Warriors season was the inaugural season of the franchise in the Maharlika Pilipinas Basketball League (MPBL).
[1] The Warriors finished the regular season 14–11, enough to claim the fourth seed in the South Division.
In the Division Quarterfinals, they faced against the Bacoor City Strikers.
General Santos would lose to Bacoor City in two games.
The team played all of their home games this season at Lagao Gymnasium.