Key points:
- Claressa Shields holds all four heavyweight titles, but is currently challenging for the middleweight titles this week
- The middleweight division is split between Kaye Scott (WBA/WBC) and Tamm Thibeault (IBF/WBO)
- Dina Thorslund became undisputed bantamweight champion on August 8
- Katie Taylor is one fight away from full undisputed status at super lightweight
A division-by-division snapshot
Women’s boxing spans 17 weight classes across four sanctioning bodies, and the picture shifts constantly as unification fights close gaps and new champions emerge. Here’s where things stand across the divisions with the most action right now.
Heavyweight – Claressa Shields
Shields (18-0, 3 KOs) holds the WBA, WBC, IBF, and WBO heavyweight titles, making her the division’s undisputed champion. She’s spending this week campaigning two weight classes down, however, challenging for the middleweight titles rather than defending at heavyweight, a rare move for a reigning undisputed champion in any division.
Middleweight – Split Between Scott and Thibeault
The middleweight picture is genuinely divided. Kaye Scott (5-1-1) holds the WBA and WBC titles, won with a majority decision over Olivia Curry last December, and defends against Shields on August 15. The IBF and WBO belts belong to Tamm Thibeault, who took them from Desley Robinson in a shutout decision on August 8, in just her fifth professional fight as a two-time Olympian. A Shields win over Scott wouldn’t unify the division outright, since Thibeault’s belts would remain separate.
Bantamweight – Dina Thorslund, Undisputed
Thorslund swept every card against Cherneka Johnson on August 8 to become bantamweight’s undisputed champion, holding the WBC, WBA, IBF, and WBO titles simultaneously. It’s a full-circle achievement, coming after she vacated her belts in 2025 due to pregnancy before returning to reclaim the throne.
Featherweight – Amanda Serrano
Serrano (49-4-1, 32 KOs) holds The Ring, WBA, and WBO titles at 126 pounds, defending against Lucrecia Manzur on August 21 while chasing the all-time women’s boxing knockout record.
Super Featherweight – Caroline Dubois
Dubois (13-0-1, 5 KOs) holds both the WBC and WBO titles at 130 pounds, unusual for a division that more often splits its belts across multiple champions. She defends against Amelia Moore on August 29 in Birmingham.
Super Lightweight – Katie Taylor Closes In on Undisputed
Taylor (25-1, 6 KOs) holds the WBA, IBF, WBO, and Ring titles at 140 pounds. The WBC belt sits vacant, and Taylor faces Flora Pili for all four on September 5 at Dublin’s Croke Park in what’s being billed as her farewell fight, a chance to complete the set in front of 80,000 fans on home soil.
Super Welterweight – A Three-Way Split Heading Toward Unification
Mikaela Mayer (WBA/WBC), Oshae Jones (IBF), and Chantelle Cameron (WBO) currently split the 154-pound titles three ways. That changes on August 29, when Cameron and Mayer meet in Birmingham to unify three of the four belts in one fight.
Super Bantamweight – Vacant and Up for Grabs
The WBA super bantamweight title has sat empty since Ellie Scotney moved up in weight rather than defending it after taking the belt from Mayelli Flores in April. Flores gets a chance to reclaim it against unbeaten Melissa Mortensen on August 21.
Why so many belts are moving at once
Part of the reason so many women’s divisions are in flux simultaneously comes down to timing. Several marquee fighters, Shields, Taylor, and Serrano among them, are all deep into what’s being framed as the closing stretch of their careers, actively working to tie up unfinished business before stepping away. That’s compressed years of potential unification fights into a single, unusually active summer.