In 2019, he pitched for the Single-A Quad Cities River Bandits and High-A Fayetteville Woodpeckers, accumulating a 7–5 record and 3.58 ERA with 151 strikeouts across 25 games (19 of them starts).

[10] He had fifteen friends and family fly to Houston from Western New York but did not appear in that day's game.

[2] He made his debut on June 19 against the New York Mets and struck out the first batter he faced, Brandon Nimmo.

[11] Dubin made his first MLB start on July 2, allowing one run in four innings against the Texas Rangers at Globe Life Field.

[15] At Sugar Land in 2024, Dubin made 10 appearances, was 2–0, pitched 10 innings, allowed 4 runs with 8 hits and 5 strikeouts, and struck out 13,[16]