Compare
Athlete head-to-head
Compare career records, current form and shared race results. Use athlete slugs, names, or profile IDs.
Battle read
Ari Klau leads the stored head-to-head
Last 5 shared: Matt Schafer 1, Ari Klau 4. This only counts races where both athletes have stored results.
Win share
Matt Schafer
20%
Win share
Ari Klau
80%
Latest shared race
2025 Ironman 70.3 Santa Cruz
9/6/2025 · edge Ari Klau
19
Matt Schafer
5
Ari Klau
Head-to-head
Matt Schafer vs Ari Klau
Ari Klau leads: 1-4 across 5 shared starts
Last 5 shared: Matt Schafer 1, Ari Klau 4
Latest shared race: 2025 Ironman 70.3 Santa Cruz - edge Ari Klau
Career starts: Matt Schafer 12, Ari Klau 22
Career wins: Matt Schafer 0, Ari Klau 0
12
Starts
22
0
Wins
0
0
Podiums
2
5
Top 10s
12
#5
Best
#2
#16.3
Avg pos
#11.5
535
Points
1067
1
Matt Schafer head-to-head wins
5
Shared race starts
4
Ari Klau head-to-head wins
Shared races
Only races where both athletes have a stored result are shown.
2025 Ironman 70.3 Santa Cruz
9/6/2025
19
Matt Schafer
4:00:45
5
Ari Klau
3:45:39
2025 Ironman Lake Placid
7/19/2025
17
Matt Schafer
8:37:18
DNF
Ari Klau
DNF
2025 Ironman 70.3 Chattanooga
5/17/2025
42
Matt Schafer
1:53:31
5
Ari Klau
1:12:56
2024 Ironman 70.3 Maine
7/27/2024
9
Matt Schafer
3:50:08
5
Ari Klau
3:46:11
2023 Ironman 70.3 Maine
7/29/2023
15
Matt Schafer
4:01:15
7
Ari Klau
3:48:18
| Race | Matt Schafer | Ari Klau | Edge |
|---|---|---|---|
| 2025 Ironman 70.3 Santa Cruz 9/6/2025 | 19 4:00:45 | 5 3:45:39 | B |
| 2025 Ironman Lake Placid 7/19/2025 | 17 8:37:18 | DNF DNF | A |
| 2025 Ironman 70.3 Chattanooga 5/17/2025 | 42 1:53:31 | 5 1:12:56 | B |
| 2024 Ironman 70.3 Maine 7/27/2024 | 9 3:50:08 | 5 3:46:11 | B |
| 2023 Ironman 70.3 Maine 7/29/2023 | 15 4:01:15 | 7 3:48:18 | B |