2025 WORLD AQUATICS SWIMMING WORLD CUP – Toronto
- October 23-25, 2025
- Toronto, Canada
- SCM (25 meters)
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Men’s 100 Backstroke — Final
World Record: 48.33 — Coleman Stewart, United States (2021)- World Junior Record: 48.76 — Miron Lifintsev, Russia (2024)
World Cup Record: 48.78 — Hubert Kos, Hungary (2025)- Triple Crown Contender: Hubert Kos (HUN)
Top 8 Finishers:
- Hubert Kos (HUN) – 48.16 *World Record*
- Kacper Stokowski (CLB) – 49.41
- Ralf Tribuntsov (EST) – 49.92 *Estonian Record*
- Finlay Knox (CAN) – 50.02
- Gabriel Jett (USA) – 50.07
- Lorenzo Mora (ITA) – 50.18
- Enoch Robb (AUS) – 50.25
- Blake Tierney (CAN) – 50.47
During the final session of the 2025 World Cup series, Hubert Kos dominated the men’s 100 backstroke and set a new world record time of 48.16, but amid the Hungarian’s mind-boggling performance, Estonia’s Ralf Tribuntsov quietly made history of his own.
The 31-year-old notched a time of 49.92, breaking the 50-second barrier for the first time and improving on his former national record of 50.25, which he set en route to a 10th-place finish at last December’s Short Course World Championships. In tonight’s race, he sat fifth through the first 25, fell to sixth at the halfway mark, and moved to fourth at 75 before taking bronze.
Compared to his previous record, he improved by over half a second on the back half, closing in 25.73 compared to 26.26 in his previous best. He opened in 24.19, just over two tenths shy of his 23.99 split from just under a year ago.
Splits Comparison:
| New National Record | Former National Record | |
| 25 | 11.67 | 11.54 |
| 50 | 12.51 (24.19) | 12.45 (23.99) |
| 75 | 12.89 | 12.95 |
| 100 | 12.84 (25.73) | 13.31 (26.26) |
| Total Time | 49.92 | 50.25 |
Tribuntsov’s performance marks the 32nd time he has broken a national record, counting both short-course and long-course meters.
He currently holds a total of seven individual Estonian records: the 50 free (22.07), 100 free (49.39), 50 back (24.87), and 100 back (55.03) in long course meters, and the 100 back, 50 free (21.12), and 50 back (22.91) in short course meters.
Earlier in the meet, Tribuntsov touched fourth in the 50 back (23.06) and sixth in the 50 free (21.17). At the Westmont leg last week, he finished fourth in the 50 back (23.12), sixth in the 50 free (21.22), and eighth in the 50 fly (22.75).
To open up the series in Carmel, he took second in the 50 back (22.91), sixth in the 100 back (50.77), and seventh in the 50 free (21.28). His national records in the 50 back and 50 free both stem from the Carmel meet, with his 50 free time produced in prelims.
