Mason Leach

Personal Bests

Best times from available individual swims and official relay lead-offs. Career coverage may be incomplete. Select an event to show its progression.

50 Freestyle

2024 TYR Pro Swim Series - Knoxville · Westmont, United States of America · Meet 10–13 Jan 2024

—24.71

50 Backstroke

2025 TYR Summer Championships · Meet 5–8 Aug 2025

—25.87

2025 TYR Summer Championships · Meet 5–8 Aug 2025

—55.04

100 Breaststroke

2024 TYR Pro Swim Series - Knoxville · Westmont, United States of America · Meet 10–13 Jan 2024

—1:08.60

2023 Speedo Junior National Championships — Swimming · San Antonio, TX · Meet 31 Jul–4 Aug 2023

—54.92

All Results 15 swims · 4 meets

Meet dates describe the competition. Race dates are shown per swim where available.

2025 World Aquatics Swimming World Cup · Westmont · Meet 17–19 Oct 2025

50 Backstroke SCM

—Heat324.32

100 Backstroke SCM

—Heat853.53

200 Backstroke SCM

—Heat62:00.39

2025 TYR Summer Championships · Meet 5–8 Aug 2025

50 Backstroke LCM

—Heat1225.87

50 Backstroke LCM

—Consolation Final326.06

100 Backstroke LCM

—Heat255.04

100 Backstroke LCM

—Final455.08

2024 TYR Pro Swim Series - Knoxville · Westmont, United States of America · Meet 10–13 Jan 2024

50 Freestyle LCM

—Heat6924.71

100 Butterfly LCM

—Heat4956.44

100 Backstroke LCM

—Heat3959.12

100 Breaststroke LCM

—Heat601:08.60

2023 Speedo Junior National Championships — Swimming · San Antonio, TX · Meet 31 Jul–4 Aug 2023

100 Butterfly LCM

—Heat2454.92

100 Butterfly LCM

—Bonus Final2455.51

100 Backstroke LCM

—Heat2557.28

100 Backstroke LCM

—Bonus Final2357.30