 On May 31, 1924, he was the winning pitcher and struck out 11 batters in the game that secured the Big Ten championship for Michigan — a 9–0 shutout victory against Wisconsin.In the final game of the 1924 season, Jablonowski threw a complete game shutout, allowing only five hits and striking out 13 batters in an 11–0 victory over Japan's championship team from Meiji University.In 1925, Jablonowski helped lead the Michigan baseball team to a 17–8 record.