The Blue Jays defeat the Orioles, 10 – 9, in 10 innings, as Willie Greene ties an American League record by hitting a pinch home run in two consecutive at bats. His previous pinch home run came against the Royals on June 20th. Greene’s homer in the bottom of the 9th ties the score at 7 – 7. The Orioles score two in the top half of the 10th, but the Blue Jays come back with three runs in their half of the inning to win.

This Day In Baseball

On June 30, 1999 The Blue Jays defeat the Orioles, 10 – 9, in 10 innings, as Willie Greene ties an American League record by hitting a pinch home run in two consecutive at bats. His previous pinch home run came against the Royals on June 20th. Greene’s homer in the bottom of the 9th ties the score at 7 – 7. The Orioles score two in the top half of the 10th, but the Blue Jays come back with three runs in their half of the inning to win.

Source
Baseball Reference June 30