Chicago White Sox rookie outfielder Braden Montgomery hit a two-run walk-off home run in his first major league at-bat on June 10, 2026 [1, 2].
The feat marks a rare historical achievement that places the rookie among an elite group of players in the history of the sport [4].
Montgomery secured the victory for the White Sox at Guaranteed Rate Field in Chicago [2, 3]. The home run occurred in the 10th inning, driving in two runs to lift the White Sox to a 6-5 win over the Atlanta Braves [1, 2].
Because the home run occurred during his first at-bat, it also served as Montgomery's first official hit in the major leagues [1, 2]. This specific sequence of events, a walk-off home run in a debut, has only happened to five players in the history of Major League Baseball [4].
The game had remained competitive through the late innings before Montgomery's contribution ended the contest [2]. The White Sox utilized the rookie's unexpected power to overcome the Braves in a high-scoring affair [1, 2].
“Fifth player ever to hit a walk-off homer in his MLB debut”
Montgomery's entry into the league is statistically anomalous, as the rarity of a debut walk-off home run creates immediate franchise visibility. For the White Sox, such a high-impact debut from a rookie outfielder suggests a potential shift in offensive production and provides a significant morale boost for the roster.
