By Sam Blacker on SwimSwam
2025 WORLD AQUATICS SWIMMING WORLD CUP – Westmont
October 17-19, 2025 Westmont, Illinois SCM (25 meters) Meet Central Psych Sheets Live Results Live Recaps: Prelims: Day 1 Finals: Day 1Fresh from her Record-setting exploits last week in Carmel, Roos Vanotterdijk wasted no time in resetting the Belgian record books at the second stop of the World Cup in Westmont. She shaved time off her own records in the 100 IM and 50 fly, taking her to a stunning 16 National Records set in 2025 alone.
She started off lowering her 50 backstroke record by eight-hundredths of a second, placing 7th in a time of 26.43. That jumps her up to 37th all-time in the European rankings, and puts her more than a second ahead of Jasmijn Verhaegen in the Belgian Ranks.
At the end of the session, she repeated the trick with a new best of 57.41 in the 100 IM to take 3rd behind the American duo of Gretchen Walsh and Kate Douglass. This was another record she had initially broken in Carmel last week, where she took the Belgian standard down from 57.92 to 57.44.
She was out slower this week, hitting the halfway point nearly three-tenths down on her previous pace, but was four-tenths faster on the breaststroke leg to inch ahead. She came home in a nearly identical 14.1, pulling away from Anastasia Gorbenko and Rebecca Meder for a comfortable 3rd place.
2025 – World Cup, Carmel Stop 2025 – World Cup, Westmont Stop 25 11.77 11.81 50 25.90 (14.13) 26.18 (14.37) 75 43.32 (17.42) 43.26 (17.08) 100 57.44 (14.12) 57.41 (14.15)She breaks a tie for 7th all-time that she previously shared with Yiting Yu, and is just nine-tenths of a second off Katinka Hosszu‘s European Record.
Top 10 Women’s SCM 100 IM Performers All-Time
Gretchen Walsh (USA) – 55.11, 2024 Kate Douglass (USA) – 56.34, 2025 Katinka Hosszu (HUN) – 56.51, 2017 Beryl Gastaldello (FRA) – 56.67, 2024 Mary-Sophie Harvey (CAN) – 57.04, 2024 Sarah Sjoestroem (SWE) – 57.10, 2017 Roos Vanotterdijk (BEL) – 57.41, 2025 Yiting Yu (CHN) – 57.44, 2024 Charlotte Bonnet (FRA) – 57.47, 2023 Beata Nelson (USA) – 57.53, 2024She still has the 50 and 100 fly to swim here in Westmont, and set a national record in the latter last week. Overall, Vanotterdijk owns the Belgian Records in the 100 free, 50 fly, 100 fly, 50 back, and 100 back in both long course and short course, the 100 IM in short course, and the 200 IM in long course.
Roos Vanooterdijk’s Belgian Records
Time Date 100 free (SCM) 52.61 11/02/2024 50 fly (SCM) 25.32 12/14/2024 100 fly (SCM) 55.64 10/12/2025 50 back (SCM) 26.43 10/17/2025 100 back (SCM) 56.78 11/10/2024 100 IM (SCM) 57.41 10/17/2025 100 free (LCM) 53.62 04/14/2025 50 fly (LCM) 25.32 08/01/2025 100 fly (LCM) 55.84 07/28/2025 50 back (LCM) 27.67 07/30/2025 100 back (LCM) 58.97 02/08/2025 200 IM (LCM) 2:09.73 06/14/2025Read the full story on SwimSwam: Roos Vanotterdijk Doubles Up With A Pair Of New Belgian Records In 50 Back And 100 IM
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