Kostro spent parts of seven seasons in the big leagues, playing for the Detroit Tigers, Los Angeles Angels and Minnesota Twins between 1962-1969. In 266 games he hit .244 with five home runs. A versatile utility man, Kostro never played in more than 74 games in a season. That happened in 1963, which he split between the Tigers and Angels. While that was the year he saw the most action, it was not the best year of his career at the plate. That came in 1964 with the Twins when he hit .272 in 59 games. He also set his career highs in home runs (3), RBIs (12) and runs scored (10) that season.
The first hit of Kostro’s career came on September 7, 1962 in a game between the Tigers and Twins at Tiger Stadium. With one out in the ninth inning, he pinch hit for Detroit pitcher Ron Kline and doubled to right field off Minnesota’s Jim Kaat. Kaat retired the next two Tigers, stranding Kostro at second base and preserving a 6-4 Twins’ win.
Frank Kostro – career stats