Mike Yastrzemski's Three-Home-Run Game, 2019

Mike Yastrzemski hit three home runs in one game for the San Francisco Giants against the Arizona Diamondbacks on August 16, 2019. The San Francisco Giants won 10–9.

The game was played at Chase Field in Phoenix. It went eleven innings. The announced attendance was 23,642. The game took 4h 05m. It was a night game indoors, at 76 degrees.

It was the only time Mike Yastrzemski managed it. Mike Leake started for the Arizona Diamondbacks. Alfonso Márquez umpired behind the plate. It is the twentieth of 22 three-home-run games the archive records that season.