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Watch: Mollie O’Callaghan Set World Record in 200 Free (Westmont Night Two Race Videos)

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2025 WORLD AQUATICS SWIMMING WORLD CUP – Westmont

There were a host of new records set on Night Two of the Westmont World Cup Stop, including a monster World Record form Mollie O’Callaghan in the women’s 200 freestyle.

We have compiled race videos from the night, including that swim courtesy of the NBC Sports Youtube Channel.

Women’s 200m Freestyle — Finals

  • World Record: 1:50.31 — Siobhan Haughey, Hong Kong (2021)
  • World Junior Record: 1:51.62 — Claire Weinstein, United States (2024)
  • World Cup Record: 1:50.43 — Sarah Sjostrom, Sweden (2017)
  • U.S. Open Record: 1:50.77 — Mollie O’Callaghan, Australia (2025)

Top 8 Finishers:

  1. Mollie O’Callaghan (AUS) – 1:49.77 *World Record, World Cup Record, U.S. Open Record*
  2. Lani Pallister (AUS) – 1:52.06
  3. Anna Peplowski (CLB) – 1:52.54
  4. Erika Fairweather (NZL) – 1:52.66
  5. Marrit Steenbergen (NED) – 1:53.07
  6. Lilla Minna Abraham (HUN) – 1:53.15
  7. Freya Colbert (GBR) – 1:53.51
  8. Ella Jansen (CLB) – 1:55.02

O’Callaghan was out fast, taking an early lead with a 25.70 opening 50 that was half a second under WR pace, and three-tenths faster than she was last week.

She was a full body length ahead of Freya COlbert and Marrit Steenbergen at halfway, still under WR pace in

The lead only extended, with a furious battle for second behind her as five swimmers were separated by just over half a second. Lani Pallister, Marriott Steenbergen and Anna Peplowski edged their way ahead of the field over the next 50, but all eyes were on the Aussie out in front.

O’Callaghan split 28.30/27.88 over the final two 50s, absolutely crushing Siobhan Haughey’s World Record. She shattered the 1:50 barrier, doing so for the first time in history, and hacked more than half a second off the record.

Lani Pallister set a new best of 1:52.06 for 2nd as she closed in 28.18, with Peplowski in 3rd in 1:52.54. Erika Fairweather a 28.49 final 50 as she was 4th in 1:52.66, setting a New Zealand Record in the process.

Men’s 200 IM — Finals

Top 8 Finishers:

  1. Shaine Casas (CLB) – 1:50.08
  2. Finlay Knox (CAN) – 1:52.12
  3. Tomoyuki Matsushita (JPN) – 1:53.26
  4. David Schlicht (AUS) – 1:53.54
  5. Kieran Smith (CLB) – 1:53.85
  6. Alberto Razzetti (ITA) – 1:54.24
  7. Trenton Julian (CLB) – 1:54.39
  8. Luke Barr (CLB) – 1:55.73

Shaine Casas rocketed out to a first 50 of 23.25, just over a tenth off his opening pace last week. He was phenomenal on the backstroke though, splitting 27.19 to touch three tenths up on his time last week at halfway, touching in 50.44.

Another stellar split followed, as he split 32.48, however slightly slower than last week’s pace as he hit the 150m wall just 0.04 seconds up, and more than a second off Leon Marchand’s WR pace. On the final 50 the lack of contender pushing him told as he closed half a second slower than in Carmel. He hit the wall in 1:50.08, the joint-6th time in history.

Finlay Knox was in 2nd most of the race, and finished comfortably ahead of 3rd place Tomoyuki Matsushita, 1:52.12 to 1:53.26.

Women’s 100 Backstroke — Finals

  • World Record: 54.02 — Regan Smith, United States (2024)
  • World Junior Record: 55.75 — Bella Sims, United States (2022)
  • World Cup Record: 54.27 — Regan Smith, United States (2024)
  • U.S. Open Record: 54.92 — Regan Smith, United States (2025)

Top 8 Finishers:

  1. Regan Smith (CLB) – 54.02 *=World Record, World Cup Record, U.S. Open Record*
  2. Kaylee McKeown (AUS) – 55.04
  3. Bella Sims (CLB) – 55.51
  4. Katharine Berkoff (CLB) – 56.18
  5. Miranda Grana (CLB) – 56.52
  6. Mylie Masse (CAN) – 56.68
  7. Rhyan White (CLB) – 56.79
  8. Ingrid Wilm (CAN) – 57.53

Regan Smith dominated this race, getting out fast and extending the lead from 35 meters onwards. She was half a second ahead with 25 to go, but roared home to take the win over Kaylee McKeown by a full second.

McKeown hit the 25m wall first, two-tenths up on Smith, but the American swimmer’s underwaters were simply phenomenal as she reversed that deficit at the halfway point. She was 27.57 on the second 50, the only split under 28 seconds.

Smith hit the wall in 54.02 tying her World Record. That was a full nine-tenths faster than she was in the event last week, and gave her just her second individual win over McKeown since 2019.

She stated in the post-race interview that she would be disappointed if she was not at least 1:59-point in the 200 tomorrow, and is aiming to give McKeown more of a race than last week where the Aussie won by just over a second.

McKeown touched in 55.04 here, half a second ahead of Bella Sims’ 55.51 and a hundredth ahead of the 55.05 she posted last week. Katharine Berkoff won the close race for 4th ahead of Miranda Grana, 56.18 to 56.52. Grana set a new best time, but just missed Celia Pulido’s Mexican record of 56.21 set last week

Women’s 50 Butterfly — Finals

Top 8 Finishers:

  1. Gretchen Walsh (CLB) – 23.90
  2. Alexandria Perkins (AUS) – 24.60
  3. Roos Vanotterdijk (BEL) – 25.41
  4. Phoebe Bacon (CLB) – 25.45
  5. Taylor Ruck (CAN) – 25.61
  6. Olivia Wunsch (AUS) – 25.94
  7. Laura Lahtinen (FIN) – 25.95
  8. Kasia Wasick (POL) – 25.96

Gretchen Walsh was dominant from the start, leading wire-to-wire as she swam the 2nd-fastest time in history. This was below her former World Record of 23.94, and just under two-tenths of a second off her mark of 23.72 from last week.

She was slightly slower on both 25s than last week as she took the win over Alexandria Perkins, who shaved yet more time of her Australian and Oceanian Record, raking it from 24.64 to 24.60 tonight. After she set a new best in the 50 free last night en route to a silver medal, she could be a good bet for another record in the 100 fly tomorrow.

Roos Vanotterdijk ensured that it was an identical podium to last week as she won the battle for bronze in 25.41, just 0.04 seconds ahead of Phoebe Bacon in 4th. Taylor Ruck swam a strong 25.62 for 5th, while 6th-thorugh-8th were separated by just 0.02 seconds as every swimmer in the field broke 26 seconds.

Men’s 100 Freestyle — Finals

Top 8 Finishers:

  1. Jack Alexy (CLB) – 45.84
  2. Chris Guiliano (CLB) – 46.11
  3. Brooks Curry (CLB) – 46.23
  4. Tomas Lukminas (CLB) – 46.23
  5. Matt Richards (GBR) – 46.36
  6. Josh Liendo (CAN) – 46.60
  7. Matt King (CLB) – 46.72
  8. Luke Hobson (USA) – 46.99

Jack Alexy did not have it all his own way in the men’s 100 free final, as Chris Guiliano and Brooks Curry made this a much closer race than last week. Those three were almost dead even at halfway, with Curry leading the way in 21.79, ahead of Guiliano (21.81) and ALexy (21.84).

Alexy had a stellar 3rd 25, splitting 11.76 for the only 3rd leg under 12 seconds, giving him a two-tenths lead heading into the final 25. He didn’t pull away as he did in Carmel, splitting just 12.24 as he held on to take the win in 45.84 ahead of Guiliano’s 46.11 Curry was 3rd in 46.23

Matt Richards had the second-fastest final 50 in 24.08 to jump from 7th to 5th on the final length, touching in 46.36 to finish just behind Tomas Lukminas‘ 46.23. That was just over a tenth off his won Lithuanian Record of 46.08.

Josh Liendo fell from 4th to 6th on the second 50, falling away from the front three. Matt King and Luke Hobson were 7th and 8th in 46.72 and 46.99 respectively.

Women’s 100 Breaststroke — Finals

Top 8 Finishers:

  1. Kate Douglass (USA) – 1:03.14
  2. Mona McSharry (IRL) – 1:04.18
  3. Alex Walsh (CLB) – 1:04.45
  4. Sophie Angus (CAN) – 1:05.31
  5. Rebecca Meder (RSA) – 1:5.35
  6. Ella Ramsay (AUS) – 1:05.53
  7.  Satomi Suzuki (JPN) – 1:05.63
  8. Macarena Ceballos (ARG) – 1:05.81

Kate Douglass led wire-to-wire, making it back-to-back women’s events won by Virginia swimmers. She was the only swimmer to split under 30 seconds at halfway, touching nearly half a second ahead of Mona McSharry in 29.80. She had the fastest second 50 as well, coming home in 33.34 to take the win in 1:03.14, just off the 1:02.90 she swam to finish 1st last week.

McSharry moved up from 4th to 2nd, despite adding slightly to her time from last week. She finished in 1:04.18, a quarter of a second off her Irish Record in the event, holding off Alex Walsh down the stretch. Walsh was 3rd in 1:04.45, also just off her time from last week despite moving up three places.

Sophie Angus just edged past Rebecca Meder for 4th, as Ella Ramsay took 6th on the end of a tough double with the 400 IM.

Men’s 200 Butterfly — Finals

  • World Record: 1:46.85 — Tomoru Honda, Japan (2022)
  • World Junior Record: 1:49.61 — Chen Juner, China (2022)
  • World Cup Record: 1:48.56 — Chad Le Clos, South Africa (2013)
  • U.S. Open Record: 1:48.77 — Daiya Seto, Japan (2019)

Top 8 Finishers:

  1. Ilya Kharun (CAN) – 1:48.46 *U.S. Open Record, World Cup Record*
  2. Noe Ponti (SUI) – 1:49.32
  3. Trenton Julian (CLB) – 1:51.53
  4. Alberto Razzetti (ITA) – 1:52.68
  5. Kryzstof Chmielewski (CLB) – 1:53.15
  6. Haakon Naughton (CLB) – 1:53.70
  7. Federico Burdisso (ITA) – 1:54.40
  8. Michal Chmielewski (CLB) – 1:56.73

Noe Ponti was out like a shot, more than half a second under WR pace at the 50m mark and 0.35 second under at halfway. He touched in 51.04, well over a second ahead of Ilya Kharun‘s 52.36.

At that point the Canadian’s Triple Crown dreams seemed in tatters, but Kharun narrowed the deficit over the 3rd 50 before unleashing a stunning 28.00 final 50 to run the Swiss swimmer down and take the win in a new U.S. Open Record of 1:48.46.

That was Kharun’s second win of the meet, after he won the 50 free yesterday, and sets the 50 fly tomorrow up as the decider between himself and Ponti, after the Swiss athlete won the 100 fly last night.

Ponti just missed his Swiss Record of 1:48.77 with an incredibly gutsy swim, touching in 1:49.32, but was still a comfortable 2nd place ahead of Trenton Julian. Alberto Razzetti placed 4th in 1:52.68, while his teammate and last week’s bronze medal winner Federico Burdisso fell to 7th in 1:54.40

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Swimmin’ in the South
7 months ago

Monster kick last 50; 3 breaths last 25.

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Ropes
7 months ago

Great swimming, cannot wait for the next in the series

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SpaceUnit
7 months ago

Molly is a babe. Sorry, just saying it.

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