Hulk vs. Galaxy Master I- Incredible Hulk vol. 2 #112-

Galaxy Master blasts Hulk, and when Hulk gets up Galaxy Master realizes that he finally has someone worthy to oppose him. Hulk smashes everything that Galaxy Master throws against him, but in the end Galaxy Master transforms into gas and knocks Hulk unconscious.

WINNER: Galaxy Master, SCORE: Galaxy Master 1, Hulk 0