University of Tennessee Athletics
2025-26 Swimming & Diving Roster
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Mizuki Hirai
- Class:
- Freshman
- Hometown:
- Kariya City, Japan
HIRAI FILE
Top-10 Times In UT History
- Individual
- 100 Back: 51.70 // 7th
- 100 Fly: 50.46 // 3rd
- Relay Top Finishes
- 400 Free Relay: 3:11.40 // 8th
- 200 Medley Relay: 1:32.80 // 1st
- 400 Medley Relay: 3:24.58 // 1st
Gold: 2
2026: 200 Medley Relay, 400 Medley Relay
Silver: 1
2026: 100 Fly
2025-26 - FRESHMAN
- Top times from season: 100 Fly (50.46), 100 Back (51.70)
- At the 2026 SEC Championships...
- Appeared in the 100 Free B-Final, finishing 12th overall in the event (2/21/26).
- Earned silver in the 100 Fly, the first individual medal of her career, with the third-best time in program history of 50.46 (2/19/26).
- Shattered the SEC and Tennessee record with Jillian Crooks, McKenzie Siroky and Camille Spink in the 400 Medley Relay clocking a time of 3:24.58 and earning her second gold medal of the meet (2/19/26).
- Dethroned the previous SEC Meet and Tennessee record with a time of 1:32.80 in the 200 Medley Relay alongside McKenzie Siroky, Ella Jansen, and Camille Spink (2/17/26).
- Took her second consecutive win in the 100 Fly against Duke (1/30/26)
- Set the eighth-best time in Tennessee history after finishing the 400 free relay alongside Camille Spink, Ella Jansen, and Emily Armen with a 3:11.40 (1/23/26).
- Picked up her first collegiate win in the 100 Fly, clocking in at 51.49 and finishing seventh all-time (1?23/26).
- Made collegiate debut against Georgia (1/23/26).
Prior to Tennessee
- Top Times prior to Tennessee (Converted from LCM & SCM): 100 fly (49.48), 100 back (51.61), 100 free (48.64), 50 free (22.29).
- 2024 Paris Olympian for Japan at 17 years old, finishing seventh overall in the 100 fly with a time of 57.19.
- World junior record holder in 100 fly (56.33).
- Checked in at No. 52 on SwimSwam's Top 100 World Rankings for 2025.
- Her top time in the event converted to short course yards is 49.48, which would rank second in program history and would've been good for fourth at the 2025 NCAA Championships.
- Her converted time in the 100 back (51.61) would rank sixth in program history.
- Placed fifth in the 100 fly at the 2024 Short Course World Championships.
- Will be the first Japanese swimmer to compete at Tennessee and is the second student-athlete of any sport after Shunsuke Mitsui played for men's tennis.
Everything Orange S3 | Gui Caribe (Swimming & Diving)
Friday, January 30
Everything Orange S2 | Dave Parrington (Swimming & Diving)
Thursday, May 01
Everything Orange S2 | Matt Kredich (Swimming & Diving)
Thursday, September 05
S&D | Mona McSharry Feature
Tuesday, March 19
