Rini was a below average pitcher during her AAGPBL career. She entered the league in 1945 with the Kenosha Comets, before joining the Muskegon Lassies in 1946.[1]
In a two-season career, Rini posted a 2–12 record and an ERA of 3.62 in 23 pitching appearances, allowing 103 hits and 48 walks, while striking out only 15 batters in 112.0 innings of work. In 1945 she committed six balks, which tied her for the most in the league.[4]