Official announcements from the world boxing governing bodies, especially on mandatory fights. Long press to copy event ID, title, and status

Following the 5 September 2026 super-lightweight title clash, Katie Taylor successfully defended her WBA, WBO, and IBF titles and captured the vacant WBC belt against Flora Pili in her retirement bout. Additionally, on 7 September 2026, Paddy Donovan officially challenged IBF welterweight champion Liam Paro for a mandatory title shot following his victory over Tyrone McKenna.

• Katie Taylor Undisputed Super-Lightweight Victory: On 5 September 2026, Katie Taylor defeated Flora Pili at Croke Park to retain her WBA, WBO, and IBF super-lightweight titles and claim the vacant WBC title, retiring as a three-time undisputed champion.
• IBF Welterweight Mandatory Challenge: On 7 September 2026, Paddy Donovan officially called for a mandatory title fight against IBF welterweight champion Liam Paro following his dominant stoppage win over Tyrone McKenna. 📅 Calendar file (.ics) Paddy Donovan Mandatory Challenge Announcement 07-Sep-26
• IBF Lightweight Title Vacancy: Raymond Muratalla officially vacated his IBF lightweight title as of 4 September 2026 to move up to the super-lightweight division, leaving the 135-pound championship vacant.

Between 3 September and 5 September 2026, the WBO officially extended the negotiation deadline for the super middleweight mandatory title fight between Hamzah Sheeraz and Zhanibek Alimkhanuly to 10 September 2026. Additionally, the WBC and IBF published their updated world rankings on 4 September 2026, and all four major bodies sanctioned the 5 September 2026 super-lightweight title clash between Katie Taylor and Flora Pili.

• WBO Super Middleweight Mandatory Extension: On 4 September 2026, the WBO granted a one-week extension for negotiations between champion Hamzah Sheeraz and mandatory challenger Zhanibek Alimkhanuly, setting a new deadline of 10 September 2026 at 21:00 UTC. 📅 Calendar file (.ics) WBO Super Middleweight Mandatory Negotiation Deadline (Sheeraz vs. Alimkhanuly) 11-Sep-26, 00:00
• WBC and IBF Rankings Update: The World Boxing Council (WBC) and International Boxing Federation (IBF) officially released their updated world rankings on 4 September 2026, incorporating recent results and adjusting mandatory challenger positions.
• WBA/WBO/IBF/WBC Super Lightweight Championship: On 5 September 2026, Katie Taylor defends her WBA, WBO, and IBF super-lightweight titles against Flora Pili at Croke Park, with the vacant WBC title also at stake to determine a three-time undisputed champion. 📅 Calendar file (.ics) Katie Taylor vs. Flora Pili (Undisputed Super Lightweight) 06-Sep-26, 00:00

Between 1 September and 3 September 2026, the major boxing sanctioning bodies provided critical updates on mandatory obligations and championship schedules. The WBA officially released its updated world rankings on 2 September 2026, while the WBO confirmed a mandatory condition for the newly announced junior lightweight unification between Emanuel Navarrete and O'Shaquie Foster. Additionally, the IBF clarified that heavyweight champion Filip Hrgović must face mandatory challenger Frank Sanchez before pursuing further unifications.

• WBA World Rankings Update: The World Boxing Association (WBA) officially published its updated world rankings on 2 September 2026, incorporating recent results and adjusting the status of contenders across all weight classes.
• WBO Junior Lightweight Mandatory Ruling: On 2 September 2026, following the official announcement of the Emanuel Navarrete vs. O'Shaquie Foster unification bout for 24 October, it was confirmed that the WBO has mandated the winner to defend the title against mandatory challenger Charly Suarez within 180 days. 📅 Calendar file (.ics) Navarrete vs. Foster Unification (WBO/IBF/WBC) 24-Oct-26
• IBF Heavyweight Mandatory Status: Official reports on 3 September 2026 clarified that new IBF heavyweight champion Filip Hrgović is required to defend his title against #1 mandatory challenger Frank Sanchez, likely in the first quarter of 2027, before he can pursue a unification bout with the winner of Dubois vs. Wardley.
• WBC Welterweight Title Defense Confirmation: The WBC confirmed on 2 September 2026 that welterweight champion Ryan Garcia will make his first title defense against mandatory-adjacent contender Conor Benn on 12 September 2026 in Las Vegas. 📅 Calendar file (.ics) Ryan Garcia vs. Conor Benn (WBC Title) 12-Sep-26

On 29 August 2026, Filip Hrgović captured the IBF heavyweight championship by defeating Moses Itauma, immediately shifting the division's mandatory landscape as he expressed interest in unifications over facing mandatory challenger Frank Sanchez. This follows the WBO's 14 August 2026 order for a super middleweight mandatory defense between Hamzah Sheeraz and Zhanibek Alimkhanuly. Additionally, the WBO officially updated its world rankings on 30 August 2026 to reflect these recent championship changes and mandatory designations.

• IBF Heavyweight Title Change: Filip Hrgović won the IBF heavyweight championship on 29 August 2026, stopping Moses Itauma in the ninth round at the O2 Arena in London.
• Hrgović Unification vs. Mandatory Status: Following his victory on 29 August 2026, Hrgović signaled his intent to pursue unification bouts against Daniel Dubois (WBO) or Agit Kabayel (WBC), potentially delaying a fight with IBF mandatory challenger Frank Sanchez.
• WBO Super Middleweight Mandatory Order: On 14 August 2026, the WBO officially ordered champion Hamzah Sheeraz to begin negotiations for a mandatory title defense against Zhanibek Alimkhanuly.
• WBO Rankings Update: The World Boxing Organization published its updated world rankings on 30 August 2026, incorporating recent title changes and clarifying mandatory challenger positions across divisions.