2025 WORLD AQUATICS SWIMMING WORLD CUP – Westmont
- October 17-19, 2025
- Westmont, Illinois
- SCM (25 meters)
- Meet Central
- Psych Sheets
- Live Results
- Live Recaps:
Fresh 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, 2024
She still has the 50 and 100 fly to swim here in Westmont, and set a national record in the latter last week. In addition, she is entered in the 100 free, 100 back and 200 IM, but may choose to scratch some events, as she did in yesterday’s 50 free.
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 | 06/14/2025 |
“taking her to a stunning 16 National Records set in 2025 alone.”
This is Katinka Hosszu level of awesomeness.
She must be on for the 200 IM short course – maybe a question of when she’s going to have the opportunity to swim it when she’s so versatile?
The current record is 2:09.37, so you’d assume that whenever she swims it short course she’ll have it. Just spotted she is entered in it on Day 3, so we will have to wait and see.
[Edit] – I was looking at the pre-scratch psych sheets, she’s scratched the 200 IM