Feldmann begins his second season with the Ducks and fourth in professional baseball. The right-hander joined the Ducks in September of 2019 after being acquired from the River City Rascals of the Frontier League. He started the Ducks regular season finale against High Point and then pitched three innings of one-run ball in relief during Game Two of the Atlantic League Championship Series against Sugar Land. Prior to his stint with the Ducks, the Missouri native posted a 7-1 record with a 1.97 ERA, four complete games, one shutout, 87 strikeouts and just 14 walks in 14 games (13 starts) with River City. He then made three playoff starts, going 2-1 with a 1.23 ERA and 28 strikeouts to just three walks over 22 innings, leading the Rascals to the Frontier League championship.

The 26-year-old began his professional career in the Houston Astros organization. He spent three seasons (2017-19) in their system, reaching as high as Triple-A Fresno in 2018. In 58 relief appearances during that span, the Lindenwood University (Mo.) alum compiled a 2.87 ERA, 11 saves, 95 strikeouts and 28 walks over 81.2 innings of work. Feldmann was originally signed by the Astros as an undrafted free agent in 2017.