2025 World Championships
- July 27 – August 3, 2025 (pool swimming)
- Singapore, Singapore
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- LCM (50m)
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Hubert Kos finished 4th in the men’s 100 backstroke final, touching in 52.20 to take another hundredth off his 52.21 Hungarian National Record from yesterday.
Kos was the top seed coming into tonight’s final after he blasted a swim of 52.21 yesterday with a monster final 50 split of 26.91. He wasn’t quite as fast on the back end this evening, but he pushed the pace on the front end, dropping under 25 seconds to turn in 24.99 before coming home in 27.21 to touch almost two tenths ahead of Great Britain’s Oliver Morgan.
This is the third time he has lowered the record this season. At the 2025 Hungarian Nationals, he dropped six-tenths to take the record from 52.78 to 52.24.
Split Comparison
| 2024 Olympic Prelims- 52.78 | 2025 Hungarian Nationals- 52.24 | 2025 World Championships (semifinals)- 52.21 | 2025 World Championships (finals)- 52.20 |
| 25.71 | 25.07 | 25.30 | 24.99 |
| 27.07 | 27.17 | 26.91 | 27.21 |
This swim ranks Kos as the 17th fastest performer in history, just ahead of Japan’s Ryosuke Irie who sits in 18th at 52.24 from 2009. He is five hundredth’s behind Russia’s Miron Lifintsev who sits in 16th at 52.15.
Kos’ 4th place finish was a massive improvement from the Paris Olympics, where after earning the top spot out of prelims, he finished 10th in the semifinal and failed to advance to the final, touching in 52.98.
Kos is the favorite to win the 200 backstroke which will swim prelims on day five, and if his 100 backstroke is any indication, we could be in for an exciting swim.
