Hubert Kos Sets New 100 Back World Record in 48.16, His Second WR in Toronto

2025 WORLD AQUATICS SWIMMING WORLD CUP – Toronto

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

  1. Hubert Kos (HUN) – 48.16 ** New World Record
  2. Kacper Stokowski (CLB) – 49.41
  3. Ralf Tribuntsov (EST) – 49.92
  4. Finlay Knox (CAN) – 50.02
  5. Gabriel Jett (USA) – 50.07
  6. Lorenzo Mora (ITA) – 50.18
  7. Enoch Robb (AUS) – 50.25
  8. Blake Tierney (CAN) – 50.47

Hubert Kos set his second backstroke World Record of the final stop of the World Cup here in Toronto, He took a dominant win in 48.16, touching over a second ahead of Kacper Stokowski as he claimed the ‘Triple Triple’ – winning all three backstroke events at all three stops of this World Cup.

Kos was out in a stunning 23.07 at the halfway mark, 0.38 seconds under Coleman Stewart’s World Record pace, and a time that would have been good enough for 5th in the individual 50 last night. He had the fastest second 50 in the field as well, splitting 25.09 coming home to stay ahead of Stewart’s pace.

Kos hacked six-tenths of a second off his old Hungarian Record of 48.78, set just last week. He was well under the pace of both records through the first 50.

Split Comparison 

Hubert Kos, 2025- World Cup, Westmont Stop Coleman Stewart, 2021 – ISL Match 2, Napoli Hubert Kos, 2025 – World Cup, Toronto Stop
50 23.42 23.47 23.07
100 48.78 (25.36) 48.33 (24.86) 48.16 (25.09)

Kos set the 200 back World Record on Day 1 in Toronto, and has been on fire throughout the series. This was his seventh Hungarian Record on the tour, four of which have come in the 100 IM, one in the 200 back and two in the 100 back.

Hubert Kos Hungarian Records, World Cup 2025

  • 100 IM, Carmel Prelims: 52.11
  • 100 IM, Carmel Final: 51.29
  • 100 IM, Westmont Final: 50.99
  • 200 back, Toronto Final: 1:45.12 (WR)
  • 100 IM, Toronto Final: 50.56
  • 100 back, Toronto Final: 48.16 (WR)

He now sits at #1 in the overall standings with an unassailable lead, and will be the overall men’s champion. He took home the $10,000 Triple Crown bonus in this event, as well as an additional $10,000 for his World Record.

 

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Louiggi
7 months ago

As Aaron dominated backs early in the century, Kos is eating competition.
Soon, he will own them all – both meters’ and yards.

snailSpace
Reply to  Louiggi
7 months ago

He was awesome, but he did luck out a little by Coetze having visa issues (although I think he probably would have smoked him in SCM either way).

IRO
7 months ago

His underwaters have been a work of art throughout this series.

snailSpace
7 months ago

He swam the smart way: going out fast. The only way to swim SCM, there is nowhere to backhalf (unlike LCM).

Andy
7 months ago

To me, it’s surprising that the difference between the back 100 WR and freestyle 100m WR is only 1.7 seconds.

Swimguy94
Reply to  Andy
7 months ago

100 free is 44.84

bubo
7 months ago

When Coleman broke the WR it was so random, sad to see it go

Greenangel
7 months ago

Will he be in Poland in December for the European Championships?

Tamás from Hungary
Reply to  Greenangel
7 months ago

He is not planning to compete at the shourt course Europeans – he will instead swim at the US Open – as far as I know.

Miranda
7 months ago

What a World Cup run from Kos! Wow. Please, Hubi and Bob, set your sights on that supersuit record in the 200 LCM backstroke. Please please please.

OldSwimDad
7 months ago

I might be able to run 100m that fast. But I doubt it…