Fishman was drafted in the 30th round by the Toronto Blue Jays in 2016 and worked his way up to Double-A New Hampshire in 2019. After the 2020 minor-league season was canceled because of COVID, he was selected by the Miami Marlins in the first round of the Rule 5 Draft. He was 5-1 with a 3.67 ERA for Triple-A Jacksonville in 2021. After posting a 4-0 record and 1.87 ERA in 43 1/3 innings of relief at Jacksonville in 2022, Fishman was called up by Miami on July 29 and made his major-league debut two days later against the New York Mets. Jake pitched for Team Israel in the 2017 World Baseball Classic in South Korea and in the 2020 Olympics.
Fishman is only the third major-league player who attended Union College in Schenectady, N.Y. — and the first since 1883.