Jason Giambi (42 years, six months, 22 days) becomes the oldest major leaguer to stroke a walk-off homer, pinch-hitting a two-run blast off Ramon Troncoso deep beyond the center-field wall in the Indians’ 3-2 come-from-behind victory over the White Sox at Progressive Field. Hank Aaron (42 years, five months, seven days) previously held the distinction with his game-winning round-tripper against Texas on July 11, 1976.

This Day In Baseball

On July 29, 2013 — Jason Giambi (42 years, six months, 22 days) becomes the oldest major leaguer to stroke a walk-off homer, pinch-hitting a two-run blast off Ramon Troncoso deep beyond the center-field wall in the Indians’ 3-2 come-from-behind victory over the White Sox at Progressive Field. Hank Aaron (42 years, five months, seven days) previously held the distinction with his game-winning round-tripper against Texas on July 11, 1976.

Source:
Baseball Reference July 29
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