| kouba vs Reina | 83–55 | 60.14% |
| kouba vs Hwoarang | 61–67 | 47.66% |
| kouba vs Kazuya | 62–63 | 49.60% |
| kouba vs King | 58–66 | 46.77% |
| kouba vs Paul | 40–64 | 38.46% |
| kouba vs Dragunov | 42–54 | 43.75% |
| kouba vs Bryan | 38–55 | 40.86% |
| kouba vs Asuka | 38–45 | 45.78% |
| kouba vs Lili | 44–38 | 53.66% |
| kouba vs Jun | 33–45 | 42.31% |
| kouba vs Jin | 37–31 | 54.41% |
| kouba vs Yoshimitsu | 25–41 | 37.88% |
| kouba vs Lidia | 38–26 | 59.38% |
| kouba vs Steve | 24–38 | 38.71% |
| kouba vs Azucena | 34–26 | 56.67% |
| kouba vs Victor | 23–29 | 44.23% |
| kouba vs Xiaoyu | 23–23 | 50.00% |
| kouba vs Alisa | 15–29 | 34.09% |
| kouba vs Feng | 20–22 | 47.62% |
| kouba vs Devil Jin | 10–31 | 24.39% |
| kouba vs Leroy | 17–22 | 43.59% |
| kouba vs Leo | 20–15 | 57.14% |
| kouba vs Claudio | 15–20 | 42.86% |
| kouba vs Law | 17–17 | 50.00% |
| kouba vs Nina | 19–15 | 55.88% |
| kouba vs Lee | 12–21 | 36.36% |
| kouba vs Jack-8 | 7–18 | 28.00% |
| kouba vs Kuma | 9–15 | 37.50% |
| kouba vs Eddy | 6–17 | 26.09% |
| kouba vs Raven | 7–13 | 35.00% |
| kouba vs Lars | 7–11 | 38.89% |
| kouba vs Panda | 5–11 | 31.25% |
| kouba vs Zafina | 8–7 | 53.33% |
| kouba vs Shaheen | 6–8 | 42.86% |
| kouba vs Clive | 8–1 | 88.89% |
| kouba vs Heihachi | 3–1 | 75.00% |
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.