Washington begins his first season with the Ducks and eighth in professional baseball. The pitcher spent six seasons in the Los Angeles Dodgers organization and one in the Houston Astros system, peaking at the Triple-A level with both teams. In 159 games (seven starts) during that time, he posted a 22-9 record with a 3.31 ERA, nine saves and 264 strikeouts to 116 walks over 274.1 innings pitched. The Pennsylvania native went 4-1 with a 3.69 ERA and one save in 30 games (two starts) with Triple-A Oklahoma City in 2023, helping the Dodgers to the Pacific Coast League championship.

In 52 games (one start) at the Double-A level, the 28-year-old accrued a 9-1 record with a 1.77 ERA, seven saves and 87 strikeouts over 86.1 innings of work. The righty began the 2024 season with the Triple-A Sugar Land Space Cowboys, making three appearances. He then spent the majority of the year with the Cleburne Railroaders of the American Association, totaling a 3-1 record, two saves and 33 strikeouts in 37.1 innings pitched over 30 games. Washington was originally selected by the Dodgers in the 25th round of the 2017 amateur draft from Lehigh University.