Compare
Athlete head-to-head
Compare career records, current form and shared race results. Use athlete slugs, names, or profile IDs.
Battle read
Stored head-to-head is tied
Last 4 shared: Pierre Stieremans 2, William Mennesson 2. This only counts races where both athletes have stored results.
Win share
Pierre Stieremans
50%
Win share
William Mennesson
50%
Latest shared race
2026 Ironman 70.3 Valencia
4/18/2026 · edge Pierre Stieremans
32
Pierre Stieremans
35
William Mennesson
Head-to-head
Pierre Stieremans vs William Mennesson
Head-to-head tied: 2-2 across 4 shared starts
Last 4 shared: Pierre Stieremans 2, William Mennesson 2
Latest shared race: 2026 Ironman 70.3 Valencia - edge Pierre Stieremans
Career starts: Pierre Stieremans 8, William Mennesson 45
Career wins: Pierre Stieremans 0, William Mennesson 3
8
Starts
45
0
Wins
3
0
Podiums
6
1
Top 10s
21
#10
Best
#1
#25.8
Avg pos
#13.7
328
Points
2108
2
Pierre Stieremans head-to-head wins
4
Shared race starts
2
William Mennesson head-to-head wins
Shared races
Only races where both athletes have a stored result are shown.
2026 Ironman 70.3 Valencia
4/18/2026
32
Pierre Stieremans
3:48:39
35
William Mennesson
3:49:41
2025 Gerardmer XL
9/5/2025
13
Pierre Stieremans
4:33:23
8
William Mennesson
4:26:31
2025 Ironman Switzerland
8/23/2025
12
Pierre Stieremans
8:27:33
DNF
William Mennesson
DNF
2025 Ironman 70.3 Pays d'Aix
5/17/2025
51
Pierre Stieremans
4:08:01
34
William Mennesson
3:57:31
| Race | Pierre Stieremans | William Mennesson | Edge |
|---|---|---|---|
| 2026 Ironman 70.3 Valencia 4/18/2026 | 32 3:48:39 | 35 3:49:41 | A |
| 2025 Gerardmer XL 9/5/2025 | 13 4:33:23 | 8 4:26:31 | B |
| 2025 Ironman Switzerland 8/23/2025 | 12 8:27:33 | DNF DNF | A |
| 2025 Ironman 70.3 Pays d'Aix 5/17/2025 | 51 4:08:01 | 34 3:57:31 | B |