Chase Koepka got an early shower in the middle of a golf tournament down in Australia -- but he wasn't being doused with water, it was booze ... and for good reason too.
The pro golfer was teeing off Sunday in Adelaide -- where LIV Golf is hosting a tournament with a sellout crowd in attendance -- and on the 12th stop of the course, he hit a hole in one ... which is pretty impressive considering it's a par-3.
The spectators thought so too .