| Koou vs Reina | 14–2 | 87.50% |
| Koou vs Lili | 12–2 | 85.71% |
| Koou vs Dragunov | 10–4 | 71.43% |
| Koou vs Kazuya | 12–1 | 92.31% |
| Koou vs Alisa | 9–3 | 75.00% |
| Koou vs King | 7–2 | 77.78% |
| Koou vs Jin | 6–3 | 66.67% |
| Koou vs Victor | 5–3 | 62.50% |
| Koou vs Lidia | 5–2 | 71.43% |
| Koou vs Asuka | 5–1 | 83.33% |
| Koou vs Xiaoyu | 5–0 | 100.00% |
| Koou vs Nina | 4–1 | 80.00% |
| Koou vs Jun | 4–1 | 80.00% |
| Koou vs Hwoarang | 3–1 | 75.00% |
| Koou vs Feng | 3–1 | 75.00% |
| Koou vs Leo | 4–0 | 100.00% |
| Koou vs Lars | 2–1 | 66.67% |
| Koou vs Shaheen | 2–1 | 66.67% |
| Koou vs Heihachi | 3–0 | 100.00% |
| Koou vs Yoshimitsu | 2–0 | 100.00% |
| Koou vs Jack-8 | 2–0 | 100.00% |
| Koou vs Devil Jin | 2–0 | 100.00% |
| Koou vs Azucena | 1–1 | 50.00% |
| Koou vs Law | 0–1 | 0.00% |
| Koou vs Bryan | 0–1 | 0.00% |
| Koou vs Claudio | 1–0 | 100.00% |
| Koou vs Lee | 0–1 | 0.00% |
| Koou vs Leroy | 0–1 | 0.00% |
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.