NEW YORK – The Seattle Mariners have claimed catcher Willie MacIver off waivers from the Toronto Blue Jays, Executive Vice President and general manager Justin Hollander announced Thursday. The move brings Seattle’s 40‑man roster to 38 players.
MacIver, 29, will report to Triple‑A Tacoma after splitting the 2026 season between the Rangers and Blue Jays organizations. Across 74 Triple‑A games, he has hit .253 with 16 doubles, three triples, eight home runs, 50 RBI and five stolen bases, while posting a .342 on‑base percentage and .424 slugging percentage (.766 OPS).
He appeared in 32 major‑league games with the Oakland Athletics in 2025, batting .186 with five doubles, three home runs and nine RBI.
A Pleasant Hill, Calif., native, MacIver was drafted in the ninth round by the Colorado Rockies in 2018 out of the University of Washington. Over 657 minor‑league games across four organizations — Colorado (2018–24), Oakland (2025), Texas (2026) and Toronto (2026) — he has compiled a .263 career average, 131 doubles, 20 triples, 81 home runs, 379 RBI, 84 stolen bases, a .350 OBP, and a .440 slugging percentage (.789 OPS).
If MacIver reaches the majors with Seattle, he would become the seventh former University of Washington player to appear in a game for the Mariners, joining Austin Voth (2024), Jake Lamb (2022), Braden Bishop (2019–21), Sean White (2007, 2009–10), Sean Spencer (1999) and Mike Blowers (1992–95, 1997, 1999).
