The Chicago White Sox’ Philip Humber has thrown the 21st perfect game in major league history, retiring all 27 Seattle Mariners he faced in a 4-0 Chicago victory. He also became the second White Sox pitcher to be perfect in the last three seasons; Mark Buehrle threw one for the South Side Chicago team on July 23, 2009 against the Tampa Bay Rays, and the third Sox pitcher overall to accomplish this feat. Charlie Robertson threw one for them in 1922.

In doing so, Humber threw just 96 pitches, a very efficient pitcher’s outing, and here’s how the final three outs were recorded:

Michael Saunders struck out swinging — after Humber ran the count to 3-0 on him.

John Jaso, pinch-hitting for Miguel Olivo, popped up to Alex Rios in right field.

The 27th hitter was Brendan Ryan, batting for Munenori Kawasaki, and he ran the count to 3-2 before striking out on a pitch that bounced in the dirt; A.J. Pierzynski threw to first to retire Ryan to complete the perfect game.