| Kouya vs King | 3–9 | 25.00% |
| Kouya vs Hwoarang | 6–4 | 60.00% |
| Kouya vs Steve | 8–1 | 88.89% |
| Kouya vs Jin | 5–2 | 71.43% |
| Kouya vs Nina | 5–2 | 71.43% |
| Kouya vs Lee | 5–2 | 71.43% |
| Kouya vs Jun | 3–3 | 50.00% |
| Kouya vs Azucena | 4–2 | 66.67% |
| Kouya vs Law | 0–5 | 0.00% |
| Kouya vs Yoshimitsu | 2–3 | 40.00% |
| Kouya vs Xiaoyu | 2–3 | 40.00% |
| Kouya vs Bryan | 2–3 | 40.00% |
| Kouya vs Lars | 3–2 | 60.00% |
| Kouya vs Kazuya | 1–3 | 25.00% |
| Kouya vs Leo | 2–2 | 50.00% |
| Kouya vs Reina | 2–2 | 50.00% |
| Kouya vs Raven | 2–2 | 50.00% |
| Kouya vs Eddy | 1–3 | 25.00% |
| Kouya vs Paul | 2–1 | 66.67% |
| Kouya vs Asuka | 2–1 | 66.67% |
| Kouya vs Feng | 3–0 | 100.00% |
| Kouya vs Dragunov | 3–0 | 100.00% |
| Kouya vs Claudio | 2–1 | 66.67% |
| Kouya vs Victor | 2–1 | 66.67% |
| Kouya vs Jack-8 | 2–0 | 100.00% |
| Kouya vs Zafina | 2–0 | 100.00% |
| Kouya vs Devil Jin | 0–1 | 0.00% |
| Kouya vs Lili | 0–1 | 0.00% |
| Kouya vs Alisa | 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.