Mikaela Mayer made history by becoming a three-weight world champion, beating junior middleweight Mary Spencer in a unanimous decision: 100-90 98-92 and 98-92.
MONTREAL — Mikaela Mayer is back on top and now, she’s a unified champion in a third weight division. The former two-division world champion produced a masterful performance Thursday night, defeating WBA champion Mary Spencer by unanimous decision to claim both the vacant WBC and WBO junior middleweight titles.
Mikaela Mayer beat Mary Spencer via a unanimous decision, 100-90 98-92 98-92, to become the WBA, WBO and WBC Junior Middleweight Champ, thus making her a three-weight champion.
MONTREAL, Canada (Oct. 28, 2025) — Two-weight queen Mikaela Mayer looks to conquer a third weight class on enemy soil. Mayer will challenge Canadian fan favorite Mary Spencer for the WBA super welterweight world title this Thursday, Oct.
Mary Spencer boxes Mikaela Mayer in a defense of her WBA Junior Middleweight Title on March 30, as we preview the upcoming fight. Spencer defeated Naomi Mannes in September 2024 to secure the WBA Interim Junior Middleweight belt, later becoming the full champion once Terri Harper explored her options at lightweight.
Top Rank Boxing's post-ESPN era will officially begin with Mikaela Mayer and Mary Spencer. Mayer, 35, and Spencer, 40, headline a five-fight card on Oct.
MONTREAL, January 23, 2025 – WBA super welterweight world champion Mary Spencer will defend her title for the first time against Venezuela’s former two-time world champion, Ogleidis Suarez, on March 14, in the co-main event of the gala at Théâtre St-Denis.