Compare
Athlete head-to-head
Compare career records, current form and shared race results. Use athlete slugs, names, or profile IDs.
Battle read
William Mennesson leads the stored head-to-head
Last 4 shared: Jonathan Guisolan 0, William Mennesson 3. This only counts races where both athletes have stored results.
Win share
Jonathan Guisolan
0%
Win share
William Mennesson
75%
Latest shared race
2026 Challenge Sir Bani-Yas
1/30/2026 · edge William Mennesson
20
Jonathan Guisolan
19
William Mennesson
Head-to-head
Jonathan Guisolan vs William Mennesson
William Mennesson leads: 0-3 across 4 shared starts
Last 4 shared: Jonathan Guisolan 0, William Mennesson 3
Latest shared race: 2026 Challenge Sir Bani-Yas - edge William Mennesson
Career starts: Jonathan Guisolan 14, William Mennesson 45
Career wins: Jonathan Guisolan 1, William Mennesson 3
14
Starts
45
1
Wins
3
2
Podiums
6
5
Top 10s
21
#1
Best
#1
#15.2
Avg pos
#13.7
721
Points
2108
0
Jonathan Guisolan head-to-head wins
4
Shared race starts
3
William Mennesson head-to-head wins
Shared races
Only races where both athletes have a stored result are shown.
2026 Challenge Sir Bani-Yas
1/30/2026
20
Jonathan Guisolan
3:27:03
19
William Mennesson
3:26:58
2025 Ironman Switzerland
8/23/2025
DNF
Jonathan Guisolan
DNF
DNF
William Mennesson
DNF
2024 Ironman 70.3 Valencia
4/20/2024
52
Jonathan Guisolan
3:57:54
43
William Mennesson
3:54:33
2023 Ironman 70.3 Bahrain
12/7/2023
16
Jonathan Guisolan
3:47:33
12
William Mennesson
3:43:49
| Race | Jonathan Guisolan | William Mennesson | Edge |
|---|---|---|---|
| 2026 Challenge Sir Bani-Yas 1/30/2026 | 20 3:27:03 | 19 3:26:58 | B |
| 2025 Ironman Switzerland 8/23/2025 | DNF DNF | DNF DNF | No score |
| 2024 Ironman 70.3 Valencia 4/20/2024 | 52 3:57:54 | 43 3:54:33 | B |
| 2023 Ironman 70.3 Bahrain 12/7/2023 | 16 3:47:33 | 12 3:43:49 | B |