Here is a list of Taylor's best fights. For a list of Taylor's losses, refer to "Katie Taylor Losses".
On April 28, 2018 Katie Taylor, the WBA champion, met Victoria Bustos, the IBF champion, in a lightweight world-title unification fight. Taylor was 31 years old and with a record of 9-0 (4), and Bustos was 29 years old and with a record of 18-4 (0). Taylor won the fight via 10-round unanimous decision and and is crowned the unified WBA and IBF champion.
On August 22, 2020 Katie Taylor met Delfine Persoon in a lightweight (WBA, WBC, IBF, WBO and The Ring) world-title defense fight. Taylor was 34 years old and with a record of 16-0 (6), and Persoon was 35 years old and with a record of 44-2 (18). Taylor won the fight via 10-round unanimous decision and successfully defended her titles.
On November 15, 2024 Katie Taylor met Amanda Serrano in a super-lightweight (WBA, WBC, IBF, WBO and The Ring) world-title defense fight. Taylor was 38 years old and with a record of 24-1 (6), and Serrano was 36 years old and with a record of 47-2-1 (31). Taylor won the fight via 10-round unanimous decision and successfully defended her titles.
On June 1, 2019 Katie Taylor, the WBA, IBF and WBO champion, met Delfine Persoon, the WBC and The Ring champion, in a lightweight world-title unification fight. Taylor was 32 years old and with a record of 14-0 (6), and Persoon was 34 years old and with a record of 43-1 (18). Taylor won the fight via 10-round majority decision and and is crowned the unified WBA, IBF, WBO, WBC and The Ring champion.
On July 11, 2025 Katie Taylor met Amanda Serrano in a super-lightweight (WBA, WBC, IBF, WBO and The Ring) world-title defense fight. Taylor was 39 years old and with a record of 25-1 (6), and Serrano was 36 years old and with a record of 47-3-1 (31). Taylor won the fight via 10-round majority decision and successfully defended her titles.
On April 30, 2022 Katie Taylor met Amanda Serrano in a lightweight (WBA, WBC, IBF, WBO and The Ring) world-title defense fight. Taylor was 35 years old and with a record of 21-0 (6), and Serrano was 33 years old and with a record of 42-1-1 (30). Taylor won the fight via 10-round split decision and successfully defended her titles.
On December 11, 2021 Katie Taylor met Firuza Sharipova in a lightweight (WBA, WBC, IBF, WBO and The Ring) world-title defense fight. Taylor was 35 years old and with a record of 20-0 (6), and Sharipova was 27 years old and with a record of 14-1 (8). Taylor won the fight via 10-round unanimous decision and successfully defended her titles.
On September 4, 2021 Katie Taylor met Jennifer Han in a lightweight (WBA, WBC, IBF, WBO and The Ring) world-title defense fight. Taylor was 35 years old and with a record of 19-0 (6), and Han was 38 years old and with a record of 18-3-1 (1). Taylor won the fight via 10-round unanimous decision and successfully defended her titles.
On October 20, 2018 Katie Taylor met Cindy Serrano in a lightweight (WBA and IBF) world-title defense fight. Taylor was 32 years old and with a record of 11-0 (5), and Serrano was 36 years old and with a record of 27-5-3 (9). Taylor won the fight via 10-round unanimous decision and successfully defended her titles.
On November 25, 2023 Katie Taylor fought Chantelle Cameron in a super-lightweight world-title fight for Cameron's WBA, WBC, IBF, WBO and The Ring titles. Taylor was 37 years old and with a record of 23-1 (6), and Cameron was 32 years old and with a record of 18-0 (8). Taylor won the fight via 10-round majority decision and is crowned the new super-lightweight world champion.