| Kouu vs Jin | 131–113 | 53.69% |
| Kouu vs Kazuya | 106–101 | 51.21% |
| Kouu vs Reina | 110–73 | 60.11% |
| Kouu vs King | 95–79 | 54.60% |
| Kouu vs Dragunov | 85–68 | 55.56% |
| Kouu vs Bryan | 83–65 | 56.08% |
| Kouu vs Hwoarang | 75–71–1 | 51.37% |
| Kouu vs Law | 78–63 | 55.32% |
| Kouu vs Steve | 72–61 | 54.14% |
| Kouu vs Lili | 71–56 | 55.91% |
| Kouu vs Paul | 62–64 | 49.21% |
| Kouu vs Asuka | 73–39 | 65.18% |
| Kouu vs Lars | 53–47 | 53.00% |
| Kouu vs Jun | 48–44 | 52.17% |
| Kouu vs Yoshimitsu | 58–33 | 63.74% |
| Kouu vs Clive | 40–47 | 45.98% |
| Kouu vs Xiaoyu | 45–39 | 53.57% |
| Kouu vs Heihachi | 50–30 | 62.50% |
| Kouu vs Victor | 46–33 | 58.23% |
| Kouu vs Eddy | 45–32 | 58.44% |
| Kouu vs Devil Jin | 44–28 | 61.11% |
| Kouu vs Alisa | 31–41 | 43.06% |
| Kouu vs Feng | 25–43 | 36.76% |
| Kouu vs Lidia | 39–27 | 59.09% |
| Kouu vs Azucena | 28–37 | 43.08% |
| Kouu vs Leo | 37–27 | 57.81% |
| Kouu vs Lee | 31–33 | 48.44% |
| Kouu vs Claudio | 30–24 | 55.56% |
| Kouu vs Jack-8 | 27–22 | 55.10% |
| Kouu vs Nina | 28–19 | 59.57% |
| Kouu vs Armor King | 26–20 | 56.52% |
| Kouu vs Leroy | 14–26 | 35.00% |
| Kouu vs Fahkumram | 20–20 | 50.00% |
| Kouu vs Anna | 16–23 | 41.03% |
| Kouu vs Shaheen | 18–18 | 50.00% |
| Kouu vs Kuma | 13–15 | 46.43% |
| Kouu vs Zafina | 12–12 | 50.00% |
| Kouu vs Raven | 12–12 | 50.00% |
| Kouu vs Miary Zo | 13–10 | 56.52% |
| Kouu vs Panda | 7–9 | 43.75% |
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.