On October 23, 1884, the Providence Grays (NL) whitewashed the New York Metropolitans (AA), 6–0, behind Radbourn, in what is considered to be the first official postseason interleague game. Radbourn allowed two hits and struck out nine. Tim Keefe was the losing pitcher. The very next day, Radbourn three-hit the Metropolitans and won 3–1 in a game called after seven innings due to darkness. Grays third baseman Jerry Denny hit a three-run homer in the fifth inning. It was the first home run in World Series history. Keefe lost for the second time. On October 25, 1884 the Grays defeated the Metropolitans, 11–2, in the final game of the series. Radbourn won for the third time in three days. Buck Becannon took the loss as Keefe umpired the contest.