Saucedo's father was in the Marines, so his family moved regularly as a child, including stops in Hawaii, Japan, Seattle, and Texas.

He improved to 7–1 in his senior campaign as he led the Bears to a South Puget Sound League North Division title.

[5] Due to poor grades, Saucedo began his collegiate career at Tacoma Community College (TCC),[3] pitching in six games for their baseball team in 2012.

[5][6] In April 2015, Saucedo earned the Appalachian Athletic Conference Baseball Pitcher of the Week award after a complete-game, one-hit shutout win.

[6] Saucedo was selected by the Toronto Blue Jays in the 21st round, 632nd overall, of the 2015 Major League Baseball draft.

[8] Saucedo made his professional debut that summer with the Bluefield Blue Jays of the Rookie Appalachian League, pitching 22+1⁄3 innings with 1 win, 1 save, a 2.42 ERA, and 18 strikeouts.

[10] By the end of August, Saucedo had struck out 17 batters in 20 innings with several pitches, including a fastball, curveball, slider, and change-up.

[14] Saucedo returned to Lansing to start 2017, moving up to the High-A Dunedin Blue Jays in mid-June.

[11] Saucedo began 2018 back in Dunedin and was promoted at the end of June to the Double-A New Hampshire Fisher Cats.

Working full-time as a starter, he had a 10-9 record and 4.21 ERA in 26 games for the two teams and helped New Hampshire win the 2018 Eastern League title.

[15] Continuing his promotion pattern, he started 2019 in New Hampshire, then advanced mid-season to the Triple-A Buffalo Bisons.

[18] Saucedo reached the major leagues in 2021 but could not solidify a role with the Blue Jays, being taken off the active roster several times.

[20] Saucedo made his MLB debut on June 17, his 28th birthday, pitching a scoreless inning of relief against the New York Yankees.