ATHLETE PROFILE
Thirza Sierdsma
🇳🇱 NED 1 race Best time 1:22:54
Finished top 20% of Open Women at HYROX Heerenveen 2026; 1 race, best 1:22:54.
Race insights
Thirza Sierdsma's best finish relative to the field was 2026 Heerenveen: 1:22:54, rank 242 of 1,238 in Open Women (top 20%). The division median that day was 1:34:44.
Race history
| Event | Division | Finish | Time |
|---|---|---|---|
| 2026 Heerenveen | Open Women | #242 of 1,238(top 20%) | 1:22:54 |
Times come from official HYROX results. Finish shows the rank within the division at that event, with the top percentage of the field in brackets.
Finished alongside Thirza Sierdsma
At 2026 Heerenveen, Open Women:
- #237 Ilse Esmee Teitsma — 1:22:42
- #238 Deborah Wiggers — 1:22:47
- #239 Mariëlle Boersma — 1:22:48
- #240 Marissa Janssen — 1:22:48
- #241 Jannie Jilderda — 1:22:48
- #243 Amber Van der Elst — 1:22:54
- #244 Anna Leijenaar — 1:23:00
- #245 Elvia van Slageren — 1:23:05
- #246 Alexandra Comsa — 1:23:06
- #247 Melanie Colpa — 1:23:08