ProTriStats LogoProTriStats

2023 Challenge Geraardsbergen

June 10, 2023 · Geraardsbergen, Belgium

Data: Challenge™ · Updated 7/3/2025 · Quality: unknownHow data works

Race editions

Switch year or compare this race across stored editions.

20232022201920182017
Distance
Half-Iron (70.3 miles)
Half-Iron
Field size
28
19 men · 9 women
Men SOF
73.61
Women SOF
66.29

Race story in the data

Men: Menno Koolhaas won in 3:55:27 with a +4:08 margin. Menno Koolhaas had the fastest run (1:12:51).

Women: Margie Santimaria won in 4:32:07 with a +2:21 margin. Margie Santimaria had the fastest run (1:27:40).

Shareable race cards

Copy clean podium and split summaries for chats, newsletters, and social posts.

Race summary

2023 Challenge Geraardsbergen 2023 - Men

ProTriStats

Winner: Menno Koolhaas in 3:55:27

Margin: +4:08

Fastest bike: Ruben Zepuntke - 2:12:46

Fastest run: Menno Koolhaas - 1:12:51

Top points: Menno Koolhaas - 81.13 pts

Field: 19/19 finishers, SOF 73.61

Race summary

2023 Challenge Geraardsbergen 2023 - Women

ProTriStats

Winner: Margie Santimaria in 4:32:07

Margin: +2:21

Fastest bike: Margie Santimaria - 2:34:21

Fastest run: Margie Santimaria - 1:27:40

Top points: Margie Santimaria - 75.95 pts

Field: 9/9 finishers, SOF 66.29

Men race summary

19 finishers from 19 starters · SOF 73.61

Winner
Menno Koolhaas
3:55:27
Winning margin
+4:08
Gap to second place
Fastest swim
Menno Koolhaas · 22:56
Fastest bike
Ruben Zepuntke · 2:12:46
Fastest run
Menno Koolhaas · 1:12:51
Top points
Menno Koolhaas
81.13 pts

Women race summary

9 finishers from 9 starters · SOF 66.29

Winner
Margie Santimaria
4:32:07
Winning margin
+2:21
Gap to second place
Fastest swim
Margie Santimaria · 26:48
Fastest bike
Margie Santimaria · 2:34:21
Fastest run
Margie Santimaria · 1:27:40
Top points
Margie Santimaria
75.95 pts

Men split podiums

Fastest stored segment times. These are segment rankings, not cumulative race-position order.

Swim

  1. 1
    Menno Koolhaas
    Finish 1 · split rank #1
    22:56
  2. 2
    Dries Matthys
    Finish 6 · split rank #2
    24:11
  3. 3
    Tom Vaelen
    Finish 7 · split rank #4
    24:22

T1

  1. 1
    Dieter Comhair
    Finish 8
    1:10
  2. 2
    SiebeDe Winter
    Finish 13
    1:16
  3. 3
    Sven Altermatt
    Finish 19
    1:16

Bike

  1. 1
    Ruben Zepuntke
    Finish 5 · split rank #1
    2:12:46
  2. 2
    Dieter Comhair
    Finish 8 · split rank #2
    2:14:42
  3. 3
    Joe Skipper
    Finish 3 · split rank #3
    2:14:43

T2

  1. 1
    Dieter Comhair
    Finish 8
    1:32
  2. 2
    Menno Koolhaas
    Finish 1
    1:38
  3. 3
    Dehan Louw
    Finish 18
    1:39

Run

  1. 1
    Menno Koolhaas
    Finish 1 · split rank #1
    1:12:51
  2. 2
    Ognjen Stojanović
    Finish 2 · split rank #2
    1:14:53
  3. 3
    Toon Marien
    Finish 12 · split rank #3
    1:14:55
Off-bike and off-run position order needs cumulative split-position data. ProTriStats currently stores segment times and segment ranks, so this page reports the fastest bike split rather than who entered T2 first.

Women split podiums

Fastest stored segment times. These are segment rankings, not cumulative race-position order.

Swim

  1. 1
    Margie Santimaria
    Finish 1 · split rank #1
    26:48
  2. 2
    Emma Bilham
    Finish 2 · split rank #2
    26:57
  3. 3
    Marta Bernardi
    Finish 3 · split rank #3
    28:59

T1

  1. 1
    Marta Bernardi
    Finish 3
    1:20
  2. 2
    Emma Bilham
    Finish 2
    1:23
  3. 3
    Nicole Valentine
    Finish 9
    1:27

Bike

  1. 1
    Margie Santimaria
    Finish 1 · split rank #1
    2:34:21
  2. 2
    Marta Bernardi
    Finish 3 · split rank #2
    2:35:57
  3. 3
    Emma Bilham
    Finish 2 · split rank #3
    2:36:17

T2

  1. 1
    Margie Santimaria
    Finish 1
    1:33
  2. 2
    Jana Uderstadt
    Finish 5
    1:44
  3. 3
    Emma Bilham
    Finish 2
    1:55

Run

  1. 1
    Margie Santimaria
    Finish 1 · split rank #1
    1:27:40
  2. 2
    Emma Bilham
    Finish 2 · split rank #2
    1:27:55
  3. 3
    Katrien Verstuyft
    Finish 4 · split rank #3
    1:30:56
Off-bike and off-run position order needs cumulative split-position data. ProTriStats currently stores segment times and segment ranks, so this page reports the fastest bike split rather than who entered T2 first.

PodiumMen

Winner time: 3:55:27
🥇#1
NL
Menno Koolhaas
3:55:27
81.13 pts
🥈#2
RS
Ognjen Stojanović
3:59:35
75.48 pts
🥉#3
GB
Joe Skipper
4:01:21
71.80 pts

PodiumWomen

Winner time: 4:32:07
🥇#1
IT
Margie Santimaria
4:32:07
75.95 pts
🥈#2
CH
Emma Bilham
4:34:28
71.85 pts
🥉#3
IT
Marta Bernardi
4:39:28
66.23 pts

Men · Split Rank Flow

Top finishers by stored split rank. Lower lines are worse ranks; this is not cumulative race position at each checkpoint.

Top 8
#1#9#18SwimBikeRunFinish#1#5#1#1#2#2#16#3#6#3#10#7#8#4#5#1#15#5#2#6#10#6#4#4#11#7#18#2#13#8
Menno Koolhaas1Ognjen Stojanović2Joe Skipper3Jonathan Wayaffe4Ruben Zepuntke5Dries Matthys6Tom Vaelen7Dieter Comhair8

Women · Split Rank Flow

Top finishers by stored split rank. Lower lines are worse ranks; this is not cumulative race position at each checkpoint.

Top 8
#1#5#10SwimBikeRunFinish#1#1#1#1#2#3#2#2#3#2#4#3#4#6#3#4#5#4#5#5#7#7#6#6#9#8#7#7#8#9#9#8
Margie Santimaria1Emma Bilham2Marta Bernardi3Katrien Verstuyft4Jana Uderstadt5Jonie Vanhoutte6Liesbeth Verbiest7Marion Tuin8

Men · Finish Time Distribution

Women · Finish Time Distribution

Male Pro Results

19 participants

3:55:27
Swim
22:56
Bike
2:16:32
Run
1:12:51
3:59:35
Swim
—
Bike
—
Run
1:14:53
4:01:21
Swim
26:27
Bike
2:14:43
Run
1:16:36
4:03:22
Swim
25:31
Bike
2:17:24
Run
1:17:20
4:04:15
Swim
24:25
Bike
2:12:46
Run
1:23:22
4:04:58
Swim
24:11
Bike
2:16:36
Run
1:20:56
4:06:13
Swim
24:22
Bike
2:16:23
Run
1:22:09
4:08:19
Swim
28:12
Bike
2:14:42
Run
1:22:41
4:10:44
Swim
25:27
Bike
2:25:26
Run
1:16:35
4:12:08
Swim
—
Bike
—
Run
—
PosAthleteTimeGapSwimT1BikeT2RunPoints
1Menno KoolhaasNL3:55:27Winner22:56#11:292:16:32#51:381:12:51#181.13
2Ognjen StojanovićRS3:59:35—————1:14:53#275.48
3Joe SkipperGB4:01:21—26:27#161:462:14:43#31:461:16:36#671.80
4Jonathan WayaffeBE4:03:22—25:31#101:172:17:24#71:501:17:20#868.13
5Ruben ZepuntkeDE4:04:15—24:25#51:472:12:46#11:541:23:22#1565.47
6Dries MatthysBE4:04:58—24:11#21:232:16:36#61:491:20:56#1063.10
7Tom VaelenBE4:06:13—24:22#41:232:16:23#41:541:22:09#1160.48
8Dieter ComhairBE4:08:19—28:12#181:102:14:42#21:321:22:41#1357.36
9SimonDe CuyperBE4:10:44—25:27#91:192:25:26#131:551:16:35#554.13
10Nils HuckschlagDE4:12:08——————51.76
11Antony CostesFR4:13:12—24:56#81:222:29:45#161:441:15:23#449.76
12Toon MarienBE4:14:13—26:45#171:172:29:08#142:061:14:55#347.89
13SiebeDe WinterBE4:16:03—26:16#131:162:29:34#152:071:16:48#745.49
14Jesse VondracekUS4:16:32—26:21#151:182:24:38#121:531:22:20#1244.19
15BrechtVan VoorenBE4:17:39—24:50#71:172:17:58#82:001:31:33#1742.49
16TimothyVan HoutemBE4:18:09—29:43#212:012:23:55#102:181:20:10#941.32
17Kieran StorchAU4:19:23—25:36#111:392:24:13#112:031:25:50#1639.66
18Dehan LouwZA4:26:51—28:24#191:252:32:34#171:391:22:45#1433.41
19Sven AltermattCH4:49:30—29:39#201:162:38:06#193:241:37:02#1829.22

Female Pro Results

9 participants

4:32:07
Swim
26:48
Bike
2:34:21
Run
1:27:40
4:34:28
Swim
26:57
Bike
2:36:17
Run
1:27:55
4:39:28
Swim
28:59
Bike
2:35:57
Run
1:31:03
4:41:06
Swim
29:04
Bike
2:37:21
Run
1:30:56
4:42:29
Swim
29:04
Bike
2:37:01
Run
1:33:02
4:46:27
Swim
30:52
Bike
2:38:20
Run
1:33:02
4:51:00
Swim
30:57
Bike
2:39:10
Run
1:36:36
5:14:33
Swim
30:53
Bike
2:46:50
Run
1:52:24
5:15:37
Swim
30:59
Bike
2:55:45
Run
1:45:21
PosAthleteTimeGapSwimT1BikeT2RunPoints
1Margie SantimariaIT4:32:07Winner26:48#11:432:34:21#11:331:27:40#175.95
2Emma BilhamCH4:34:28—26:57#21:232:36:17#31:551:27:55#271.85
3Marta BernardiIT4:39:28—28:59#31:202:35:57#22:061:31:03#466.23
4Katrien VerstuyftBE4:41:06—29:04#41:282:37:21#62:151:30:56#362.99
5Jana UderstadtDE4:42:29—29:04#51:382:37:01#41:441:33:02#560.09
6Jonie VanhoutteBE4:46:27—30:52#71:392:38:20#72:331:33:02#655.67
7Liesbeth VerbiestBE4:51:00—30:57#91:492:39:10#82:261:36:36#751.01
8Marion TuinNL5:14:33—30:53#81:292:46:50#92:541:52:24#937.74
9Nicole ValentineUS5:15:37—30:59#101:272:55:45#112:031:45:21#836.31