Athlete · Open Women · 35-39 ·

NED

Sandra Haanstra

3 HYROX results (1 solo, 2 in a team) over 2 seasons. Personal bests: Open Women 1:23:43 (Heerenveen 2025) · Doubles Mixed 1:10:16 (Heerenveen 2026) · Doubles Women 1:13:50 (Maastricht 2025).

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1:23:43 Open Women time · Heerenveen 2025 also raced Doubles Mixed, Doubles Women: each has its own best below

top 20% Open Women place · Heerenveen 2025 149th of 754 Open Women finishers there

1:10:16 latest race · Heerenveen 2026 first Doubles Mixed race Doubles Mixed with Marco Sijbesma

SkiErg strongest segment · Heerenveen 2025 faster than 91% of the Open Women field on it

1 · Tap any raceEach row below opens that race's report: every split against the field, where the time went, where it can come back.

2 · Read the station profileFurther down: the shape of the race, the strongest and weakest segments, and the race as one bar against the typical finisher.

3 · Turn it into trainingEvery weak station links to its workouts on RoxHype; the app writes the eight weeks from these exact splits.

Personal bests

One best per race type

solo, doubles and relay times are different races, so each has its own best

Open Women1:23:43Heerenveen 2025 · 1 race Doubles Mixed1:10:16Heerenveen 2026 · 1 race · with Marco Sijbesma Doubles Women1:13:50Maastricht 2025 · 1 race · with Ilse Bootsma

Every race

3 results

tap a race for its full report

Race	Division	Time	Place	Runs	Stations	Roxzone
Heerenveen 2026 16 May 2026team: Sandra Haanstra, Marco Sijbesmawhat the whole field did →	Doubles Mixed · team 35-39	1:10:16	top 17% 219/1,297	36:43	27:26	6:12	splits SkiErg4:06Sled push2:09Sled pull3:23Burpee broad jump3:17Row4:40Farmers carry1:45Sandbag lunges3:29Wall balls4:37Run 14:02Run 24:09Run 34:27Run 44:30Run 54:43Run 64:49Run 74:58Run 85:09Full report for this race →
Heerenveen 2025 11 May 2025what the whole field did →	Open Women · 35-39	1:23:43	top 20% 149/754	38:37	37:34	7:37	splits SkiErg4:39Sled push2:33Sled pull5:12Burpee broad jump7:07Row5:28Farmers carry2:25Sandbag lunges4:45Wall balls5:25Run 14:06Run 24:32Run 34:39Run 44:56Run 55:13Run 65:02Run 74:54Run 85:20Full report for this race →
Maastricht 2025 1 Feb 2025team: Ilse Bootsma, Sandra Haanstrawhat the whole field did →	Doubles Women	1:13:50	top 14% 92/665	36:01*	27:19*	5:12	splits SkiErg4:13Sled push1:19Sled pull3:47Burpee broad jump4:19Row5:07Farmers carry1:32Sandbag lunges3:11Wall balls3:51Run 16:15Run 24:34Run 34:44Run 44:45Run 5—Run 65:07Run 75:23Run 85:13Full report for this race →

Place is the position among timed finishers in the same race, division and gender; a doubles place is the team's. Runs is the organiser's official run total (it can differ from the eight laps added up by a few seconds), stations the eight stations added up, and roxzone the time moving between them. The age group is the one entered for that race; for a team it is the team’s age group. * At that edition running was under 44% of the typical finish (48% is normal): the timing mats counted some running as station time, so its runs look faster and its stations slower than they were. How the numbers are made.

Station profile · best Open Women race

Heerenveen 2025, against 754 Open Women

Full race report →

Shape of the race

50% top SkiPushPullBBJRowCarryLungesWall ballsRoxzoneRuns

Sandraedge = faster than everyone, centre = slowest

Each spoke is one segment (roxzone is the time moving between stations). The further out, the bigger the share of the field beaten on it. A round shape is an even race; a dent is a weak station.

How you ranked on each segment

SkiErg faster than 91%

Sled push faster than 55%

Sled pull faster than 62%

Burpee broad jump faster than 50%

Row faster than 42%

Farmers carry faster than 38%

Sandbag lunges faster than 63%

Wall balls faster than 64%

Roxzone faster than 82%

Runs (8 km) faster than 88%

Longer is better: the share of the field this segment beat.

Minutes against the typical finisher

SkiErg 0:23 faster

Sled push 0:03 faster

Sled pull 0:24 faster

Burpee broad jump level

Row 0:05 slower

Farmers carry 0:09 slower

Sandbag lunges 0:21 faster

Wall balls 0:31 faster

Roxzone 1:43 faster

Runs (8 km) 7:12 faster

Green, left of centre: faster than the typical Open Women finisher at this race. Orange, right: slower, and by how much.

The race as one bar: Sandra against the typical Open Women finisher

Sandra1:23:43

4:064:394:322:334:395:124:567:075:135:285:022:254:544:455:205:257:37

Typical Open Women1:34:03

5:065:025:212:365:365:365:397:075:545:235:452:165:475:066:335:569:20

RunsStationsRoxzone (moving between stations)

Left to right is the race in order: run 1, SkiErg, run 2, sled push, and so on. A block wider than the one below it is a slower segment than the typical finisher.

The RoxHype app

Training for the next one? Let's beat 1:23:43.

The RoxHype app takes your real splits, your kit and your next race date, and builds the weeks between.

Every session written for your weak station, not a generic plan
Rebuilt each week from what you actually did
Race-day pacing from your own splits

Build my plan in the app App Store Google Play

Free to download. Used by more than 40,000 HYROX athletes.

The RoxHype app: today's session and the race countdown