ProTriStats LogoProTriStats

2023 Ironman 70.3 Knokke-Heist

September 16, 2023 · Knokke-Heist, Belgium

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

Race editions

Switch year or compare this race across stored editions.

20252023
Distance
Half-Iron (70.3 miles)
Iron-Distance
Field size
56
36 men · 20 women
Men SOF
74.21
Women SOF
70.54

Race story in the data

Men: Pieter Heemeryck won in 3:39:45 with a +1:09 margin. SimonDe Cuyper had the fastest run (1:10:47).

Women: Lucy Buckingham won in 4:13:57 with a +0:09 margin. Elisabetta Curridori had the fastest run (1:21:50).

Shareable race cards

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

Race summary

2023 Ironman 70.3 Knokke-Heist 2023 - Men

ProTriStats

Winner: Pieter Heemeryck in 3:39:45

Margin: +1:09

Fastest bike: Pieter Heemeryck - 2:01:49

Fastest run: SimonDe Cuyper - 1:10:47

Top points: Pieter Heemeryck - 79.50 pts

Field: 36/36 finishers, SOF 74.21

Race summary

2023 Ironman 70.3 Knokke-Heist 2023 - Women

ProTriStats

Winner: Lucy Buckingham in 4:13:57

Margin: +0:09

Fastest bike: Lucy Buckingham - 2:16:48

Fastest run: Elisabetta Curridori - 1:21:50

Top points: Lucy Buckingham - 76.65 pts

Field: 20/20 finishers, SOF 70.54

Men race summary

36 finishers from 36 starters · SOF 74.21

Winner
Pieter Heemeryck
3:39:45
Winning margin
+1:09
Gap to second place
Fastest swim
Magnus Maenner · 18:50
Fastest bike
Pieter Heemeryck · 2:01:49
Fastest run
SimonDe Cuyper · 1:10:47
Top points
Pieter Heemeryck
79.50 pts

Women race summary

20 finishers from 20 starters · SOF 70.54

Winner
Lucy Buckingham
4:13:57
Winning margin
+0:09
Gap to second place
Fastest swim
Lucy Buckingham · 21:13
Fastest bike
Lucy Buckingham · 2:16:48
Fastest run
Elisabetta Curridori · 1:21:50
Top points
Lucy Buckingham
76.65 pts

Men split podiums

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

Swim

  1. 1
    Magnus Maenner
    Finish 18 · split rank #1
    18:50
  2. 2
    Wilhelm Hirsch
    Finish 2 · split rank #3
    19:28
  3. 3
    Arne Leiss
    Finish 15 · split rank #5
    19:49

T1

  1. 1
    Pieter Heemeryck
    Finish 1
    4:05
  2. 2
    Wilhelm Hirsch
    Finish 2
    4:24
  3. 3
    Kenneth Vandendriessche
    Finish 12
    4:33

Bike

  1. 1
    Pieter Heemeryck
    Finish 1 · split rank #1
    2:01:49
  2. 2
    Kristoffer VistiGraae
    Finish 16 · split rank #2
    2:02:05
  3. 3
    Wilhelm Hirsch
    Finish 2 · split rank #4
    2:02:15

T2

  1. 1
    Yvan Jarrige
    Finish 5
    1:53
  2. 2
    Dieter Comhair
    Finish 7
    1:59
  3. 3
    Timo Schaffeld
    Finish 20
    2:02

Run

  1. 1
    SimonDe Cuyper
    Finish 14 · split rank #1
    1:10:47
  2. 2
    Pieter Heemeryck
    Finish 1 · split rank #2
    1:11:37
  3. 3
    Harry Palmer
    Finish 3 · split rank #3
    1:12:08
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
    Lucy Buckingham
    Finish 1 · split rank #1
    21:13
  2. 2
    Rosie Weston
    Finish 12 · split rank #2
    22:15
  3. 3
    Emilie Morier
    Finish 3 · split rank #4
    22:53

T1

  1. 1
    Elisabetta Curridori
    Finish 8
    5:04
  2. 2
    Lucy Buckingham
    Finish 1
    5:09
  3. 3
    Katrien Verstuyft
    Finish 7
    5:09

Bike

  1. 1
    Lucy Buckingham
    Finish 1 · split rank #1
    2:16:48
  2. 2
    Abigail Bedwell
    Finish 9 · split rank #2
    2:19:58
  3. 3
    Lizzie Rayner
    Finish 2 · split rank #3
    2:20:10

T2

  1. 1
    Diede Diederiks
    Finish 4
    2:17
  2. 2
    Nina Derron
    Finish 5
    2:22
  3. 3
    Lizzie Rayner
    Finish 2
    2:25

Run

  1. 1
    Elisabetta Curridori
    Finish 8 · split rank #1
    1:21:50
  2. 2
    Diede Diederiks
    Finish 4 · split rank #2
    1:22:16
  3. 3
    Katharina Grohmann
    Finish 10 · split rank #3
    1:22:22
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: 3:39:45
🥇#1
BE
Pieter Heemeryck
3:39:45
79.50 pts
🥈#2
DE
Wilhelm Hirsch
3:40:54
76.01 pts
🥉#3
GB
Harry Palmer
3:43:08
71.85 pts

PodiumWomen

Winner time: 4:13:57
🥇#1
GB
Lucy Buckingham
4:13:57
76.65 pts
🥈#2
GB
Lizzie Rayner
4:14:06
73.98 pts
🥉#3
FR
Emilie Morier
4:15:31
70.63 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#10#20SwimBikeRunFinish#7#1#2#1#3#4#5#2#12#7#3#3#10#13#4#4#17#11#8#5#6#15#6#6#20#5#10#7#9#14#14#8
Pieter Heemeryck1Wilhelm Hirsch2Harry Palmer3Nick Emde4Yvan Jarrige5Pablo Dapena Gonzalez6Dieter Comhair7Dries Matthys8

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#9#17SwimBikeRunFinish#1#1#17#1#6#3#4#2#4#4#6#3#13#9#2#4#7#5#12#5#5#12#5#6#12#8#7#7#14#14#1#8
Lucy Buckingham1Lizzie Rayner2Emilie Morier3Diede Diederiks4Nina Derron5Katharina Krüger6Katrien Verstuyft7Elisabetta Curridori8

Men · Finish Time Distribution

Women · Finish Time Distribution

Male Pro Results

36 participants

3:39:45
Swim
20:12
Bike
2:01:49
Run
1:11:37
3:40:54
Swim
19:28
Bike
2:02:15
Run
1:12:36
3:43:08
Swim
20:18
Bike
2:03:37
Run
1:12:08
3:43:44
Swim
20:16
Bike
2:03:47
Run
1:12:35
3:44:12
Swim
20:34
Bike
2:03:45
Run
1:13:21
3:44:28
Swim
19:54
Bike
2:04:09
Run
1:13:06
3:44:36
Swim
20:57
Bike
2:03:20
Run
1:13:44
3:45:49
Swim
20:15
Bike
2:04:06
Run
1:14:35
3:46:20
Swim
20:13
Bike
2:03:46
Run
1:14:59
3:46:34
Swim
20:20
Bike
2:03:40
Run
1:15:19
PosAthleteTimeGapSwimT1BikeT2RunPoints
1Pieter HeemeryckBE3:39:45Winner20:12#74:052:01:49#12:031:11:37#279.50
2Wilhelm HirschDE3:40:54—19:28#34:242:02:15#42:131:12:36#576.01
3Harry PalmerGB3:43:08—20:18#124:452:03:37#72:221:12:08#371.85
4Nick EmdeDE3:43:44—20:16#104:502:03:47#132:181:12:35#469.20
5Yvan JarrigeFR3:44:12—20:34#174:412:03:45#111:531:13:21#866.82
6PabloDapena GonzalezES3:44:28—19:54#64:582:04:09#152:241:13:06#664.78
7Dieter ComhairBE3:44:36—20:57#204:392:03:20#51:591:13:44#1062.98
8Dries MatthysBE3:45:49—20:15#94:342:04:06#142:211:14:35#1460.44
9Jack HutchensGB3:46:20—20:13#84:582:03:46#122:271:14:59#1758.60
10Jesse HinrichsDE3:46:34—20:20#134:522:03:40#82:241:15:19#1857.09
11TomVan der HoogerstraeteBE3:46:40—20:22#145:092:03:26#62:121:15:33#1955.80
12Kenneth VandendriesscheBE3:46:53—22:11#334:332:04:25#162:321:13:13#754.52
13Julian FritzenschaftDE3:47:17—21:12#224:572:04:41#192:141:14:16#1353.17
14SimonDe CuyperBE3:47:26—20:55#194:412:08:38#272:271:10:47#152.10
15Arne LeissDE3:47:37—19:49#54:512:04:36#182:201:16:03#2051.09
16Kristoffer VistiGraaeDK3:47:53—21:29#275:052:02:05#22:171:16:58#2150.08
17Jack SosinskiAU3:48:57—20:16#114:572:06:21#202:281:14:58#1648.48
18Magnus MaennerDE3:49:43—18:50#14:482:03:42#92:241:20:02#3047.19
19Nick ThijsBE3:50:46—21:18#244:582:07:54#232:291:14:08#1245.72
20Timo SchaffeldDE3:50:48—22:05#294:342:08:43#282:021:13:25#945.12
21Lasse SchoefischDE3:52:13—22:19#375:162:07:33#212:251:14:41#1543.45
22Soeren OttenDE3:53:59—21:28#264:472:07:57#242:421:17:08#2241.54
23Louis NaeyaertBE3:54:36—20:38#184:442:11:15#344:071:13:54#1140.59
24Philip RefslundDK3:54:50—22:10#325:392:04:31#172:361:19:56#2939.99
25Matthew RalphsZA3:56:11—22:07#315:322:07:45#223:041:17:45#2338.52
26Thomas VanhalstBE3:56:33—21:15#235:022:07:58#252:581:19:22#2637.88
27Jesse VondracekUS3:57:24—22:11#344:462:09:12#292:401:18:37#2436.87
28David BreuerDE3:57:53—21:10#214:502:09:22#312:381:19:54#2836.19
29RafaelDias Lima TurteraBR3:58:31—21:33#285:532:09:20#303:031:18:44#2535.41
30William CowenGB4:00:42—21:25#255:302:08:25#262:441:22:41#3433.39
31Niels VanhoveBE4:04:41—22:11#355:172:13:24#353:121:20:39#3129.94
32Albert AskengrenSE4:05:43—22:17#366:052:13:28#362:421:21:12#3228.89
33Christian JaisDE4:09:24—23:24#415:392:17:23#373:141:19:46#2725.72
34Lucas MiseroleFR4:11:44—22:06#305:062:17:38#382:371:24:18#3524.31
35Bruno SlegersBE4:13:25—22:28#395:472:19:35#393:141:22:23#3324.14
36Thomas DreherDE5:46:42—33:44#429:592:46:46#405:362:10:38#3623.99

Female Pro Results

20 participants

4:13:57
Swim
21:13
Bike
2:16:48
Run
1:28:08
4:14:06
Swim
22:54
Bike
2:20:10
Run
1:23:05
4:15:31
Swim
22:53
Bike
2:20:18
Run
1:24:18
4:15:55
Swim
24:27
Bike
2:21:45
Run
1:22:16
4:16:41
Swim
22:57
Bike
2:20:30
Run
1:25:38
4:17:37
Swim
22:53
Bike
2:22:58
Run
1:24:01
4:18:12
Swim
24:23
Bike
2:21:30
Run
1:24:26
4:18:16
Swim
24:27
Bike
2:24:04
Run
1:21:50
4:18:19
Swim
22:57
Bike
2:19:58
Run
1:26:59
4:18:22
Swim
26:36
Bike
2:21:01
Run
1:22:22
PosAthleteTimeGapSwimT1BikeT2RunPoints
1Lucy BuckinghamGB4:13:57Winner21:13#15:092:16:48#12:411:28:08#1776.65
2Lizzie RaynerGB4:14:06—22:54#65:342:20:10#32:251:23:05#473.98
3Emilie MorierFR4:15:31—22:53#45:252:20:18#42:391:24:18#670.63
4Diede DiederiksNL4:15:55—24:27#135:122:21:45#92:171:22:16#268.18
5Nina DerronCH4:16:41—22:57#75:152:20:30#52:221:25:38#1265.64
6Katharina KrügerDE4:17:37—22:53#55:102:22:58#122:381:24:01#563.16
7Katrien VerstuyftBE4:18:12—24:23#125:092:21:30#82:461:24:26#761.06
8Elisabetta CurridoriIT4:18:16—24:27#145:042:24:04#142:541:21:50#159.46
9Abigail BedwellGB4:18:19—22:57#85:552:19:58#22:331:26:59#1457.99
10Katharina GrohmannDE4:18:22—26:36#215:422:21:01#62:431:22:22#356.64
11MarleneDe BoerNL4:18:46—23:04#105:532:21:58#102:511:25:02#955.15
12Rosie WestonGB4:19:02—22:15#25:332:23:19#132:371:25:20#1153.85
13Marta BernardiIT4:20:59—23:03#95:182:24:44#152:411:25:16#1051.45
14Henrike GueberDE4:22:07—26:35#205:372:21:05#72:461:26:06#1349.71
15Jonie VanhoutteBE4:22:43—24:53#165:412:24:49#162:251:24:57#848.43
16Line BorsinskiDK4:24:50—25:00#186:062:22:22#113:001:28:24#1846.13
17Rachel BrownGB4:25:12—24:47#155:302:25:06#172:431:27:08#1645.14
18Rachele BottiCH4:34:03—24:57#175:392:31:31#192:461:29:12#1938.23
19Josephine DelvincourtFR4:34:27—26:30#195:312:32:40#202:431:27:05#1537.32
20Friederike WilloughbyDE4:37:13—23:13#116:332:28:27#183:471:35:15#2034.80