| Kouja88 vs Eddy | 30–29 | 50.85% |
| Kouja88 vs Jin | 39–14 | 73.58% |
| Kouja88 vs Law | 26–18 | 59.09% |
| Kouja88 vs Bryan | 17–25 | 40.48% |
| Kouja88 vs King | 25–14 | 64.10% |
| Kouja88 vs Asuka | 26–11 | 70.27% |
| Kouja88 vs Paul | 16–20 | 44.44% |
| Kouja88 vs Devil Jin | 16–18 | 47.06% |
| Kouja88 vs Dragunov | 14–16 | 46.67% |
| Kouja88 vs Reina | 14–16 | 46.67% |
| Kouja88 vs Kazuya | 16–12 | 57.14% |
| Kouja88 vs Jun | 8–19 | 29.63% |
| Kouja88 vs Lidia | 7–14 | 33.33% |
| Kouja88 vs Hwoarang | 5–15 | 25.00% |
| Kouja88 vs Feng | 13–7 | 65.00% |
| Kouja88 vs Azucena | 9–11 | 45.00% |
| Kouja88 vs Yoshimitsu | 7–12 | 36.84% |
| Kouja88 vs Lili | 9–10 | 47.37% |
| Kouja88 vs Zafina | 6–12 | 33.33% |
| Kouja88 vs Alisa | 8–9 | 47.06% |
| Kouja88 vs Lee | 7–8 | 46.67% |
| Kouja88 vs Leo | 7–6 | 53.85% |
| Kouja88 vs Xiaoyu | 6–6 | 50.00% |
| Kouja88 vs Steve | 5–7 | 41.67% |
| Kouja88 vs Leroy | 4–8 | 33.33% |
| Kouja88 vs Jack-8 | 4–7 | 36.36% |
| Kouja88 vs Lars | 7–4 | 63.64% |
| Kouja88 vs Victor | 7–4 | 63.64% |
| Kouja88 vs Raven | 5–4 | 55.56% |
| Kouja88 vs Nina | 3–3 | 50.00% |
| Kouja88 vs Claudio | 2–3 | 40.00% |
| Kouja88 vs Heihachi | 3–1 | 75.00% |
| Kouja88 vs Kuma | 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.