Denaburg was drafted 27th overall by theWashington Nationals in the2018 Major League Baseball draft.[4] He signed with the organization on July 3.[5] Denaburg did not appear in a game during the 2018 season, and made his professional debut for the rookie-levelGulf Coast League Nationals on June 24, 2019.[6] Over20+1⁄3 innings, he pitched to a 7.52 ERA, walking 14 while striking out 19. Denaburg did not play in a game in 2020 due to the cancellation of the minor league season because of theCOVID-19 pandemic.[7]
On April 4, 2021, it was announced that Denaburg had undergoneTommy John surgery and would miss the entirety of the 2021 season.[8] Denaburg returned to action in 2022, and spent the next two seasons with the Single-AFredericksburg Nationals. He posted a 4.15 ERA with 38 strikeouts over 13 starts in 2022, and struggled to an 11.64 ERA with 33 strikeouts across 28 games in 2023.[9]
Denaburg split 2024 between Fredericksburg and the High-AWilmington Blue Rocks, accumulating a 6-3 record and 4.38 ERA with 49 strikeouts in61+2⁄3 innings pitched across 40 appearances out of thebullpen. He elected free agency following the season on November 4, 2024.[10]
