Koseki Sets Asian Record, Moves To #5 All-Time In 100 Breast


  • Tuesday, December 11th – Sunday, December 16th
  • Hangzhou, China
  • Tennis Centre, Hangzhou Olympic & International Expo Center
  • SCM (25m)
  • Prelims: 9:30 am local, 8:30 pm ET / Finals: 7:00 pm* local, 6:00* am ET
  • *The final night of finals will be one hour earlier, starting at 6:00 pm local and 5:00 am ET
  • Live Results (Omega)

Yasuhiro Koseki of Japan broke his Asian Record in the men’s 100 breast final on day 2 in Hangzhou, registering a time of 56.13 to lower his 56.29 from Japan’s World Trials back in October.

4th at the halfway mark in the final in 26.36, Koseki was the only swimmer in the field to come home sub-30 (29.77), as he overtook Italian Fabio Scozzoli to win the bronze, just 0.12 behind gold medal winner Cameron van der Burgh (56.01) of South Africa. van der Burgh set a new Championship Record with that win, and both Ilya Shymanovich (56.10) and Koseki were also under the old mark of 56.29 held by Brazilian Felipe Franca da Silva.

Prior to setting that 56.29 Asian Record in October, Koseki held the record at 56.34.

In the all-time rankings, Koseki jumps from tied for 7th to 5th in the event, with Shymanovich moving past him from 10th to 4th.


  1. Cameron van der Burgh, RSA, 55.61
  2. Adam Peaty, GBR, 55.94
  3. Kirill Prigoda, RUS, 56.01
  4. Ilya Shymanovich, BLR, 56.10
  5. Yasuhiro Koseki, JPN, 56.13

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About James Sutherland

James Sutherland

James formerly competed for the Laurentian Voyageurs in Sudbury, Ontario, specializing in the 200 free, back and IM. He finished up his collegiate swimming career in February of 2018, placing 11th at the OUA Championships in the 200 IM, and graduated with a bachelor's degree in economics in May. He …

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