| Kooper vs Eddy | 15–6 | 71.43% |
| Kooper vs Hwoarang | 15–5 | 75.00% |
| Kooper vs Reina | 17–2 | 89.47% |
| Kooper vs Lidia | 14–5 | 73.68% |
| Kooper vs Bryan | 14–2 | 87.50% |
| Kooper vs Lili | 12–4 | 75.00% |
| Kooper vs Jin | 13–2 | 86.67% |
| Kooper vs King | 11–3 | 78.57% |
| Kooper vs Leroy | 8–6 | 57.14% |
| Kooper vs Kazuya | 11–2 | 84.62% |
| Kooper vs Law | 12–0 | 100.00% |
| Kooper vs Jun | 11–1 | 91.67% |
| Kooper vs Victor | 9–3 | 75.00% |
| Kooper vs Devil Jin | 9–1 | 90.00% |
| Kooper vs Dragunov | 9–1 | 90.00% |
| Kooper vs Azucena | 9–1 | 90.00% |
| Kooper vs Lars | 6–1 | 85.71% |
| Kooper vs Nina | 4–3 | 57.14% |
| Kooper vs Raven | 5–2 | 71.43% |
| Kooper vs Paul | 5–1 | 83.33% |
| Kooper vs Yoshimitsu | 5–1 | 83.33% |
| Kooper vs Steve | 4–2 | 66.67% |
| Kooper vs Leo | 5–0 | 100.00% |
| Kooper vs Alisa | 4–1 | 80.00% |
| Kooper vs Xiaoyu | 3–1 | 75.00% |
| Kooper vs Feng | 3–1 | 75.00% |
| Kooper vs Zafina | 2–2 | 50.00% |
| Kooper vs Lee | 3–0 | 100.00% |
| Kooper vs Heihachi | 2–1 | 66.67% |
| Kooper vs Jack-8 | 1–0 | 100.00% |
| Kooper vs Claudio | 1–0 | 100.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.