Cleavinger (Baldwin City, Kan./Lawrence HS) finished last season with a 9-0 record, two saves and a 1.24 ERA in 37 appearances out of the bullpen for the Ducks. He allowed just 20 hits in 43.2 innings while striking out 57 and walking 24. The lefty matched a school record for lowest opponent batting average (.137), while finishing second all-time in single-season appearances and third in single-season wins. He was dominant in Pac-12 Conference play with a 4-0 record and a 1.77 ERA, while allowing just eight hits and striking out 24 in 20.1 innings. Cleavinger also put together a strong Eugene Regional Tournament allowing no runs in 5.1 innings pitched in three appearances. He struck out seven and walked one in the tournament.
Irvin (Yorba Linda, Calif./Servite HS) set an Oregon record as a freshman finishing with 12 wins while earning honorable mention all-conference recognition. He finished with a 12-3 record and a 2.48 ERA with four complete games. The left-hander finished second in program history in innings pitched (116.0) while also ranking in a tie for third all-time in starts (16). He was 7-3 with a 2.88 ERA in Pac-12 games with two complete games. Irvin was named the Pac-12 Pitcher of the Week twice as well as the National Collegiate Baseball Writers of America (NCBWA) National Player of the Week once. He earned a spot on the Eugene Regional All-Tournament Team after throwing a complete game where he allowed just one run on six hits while striking out nine. Irvin previously was named to the NCBWA Preseason All-America Third Team as well.