| Kousei vs Kazuya | 73–54 | 57.48% |
| Kousei vs Reina | 55–50 | 52.38% |
| Kousei vs Hwoarang | 54–49 | 52.43% |
| Kousei vs Bryan | 54–49 | 52.43% |
| Kousei vs Heihachi | 61–39 | 61.00% |
| Kousei vs King | 54–44 | 55.10% |
| Kousei vs Jin | 49–38 | 56.32% |
| Kousei vs Lee | 39–41 | 48.75% |
| Kousei vs Xiaoyu | 46–33 | 58.23% |
| Kousei vs Steve | 40–38 | 51.28% |
| Kousei vs Law | 43–31 | 58.11% |
| Kousei vs Yoshimitsu | 31–38 | 44.93% |
| Kousei vs Dragunov | 33–27 | 55.00% |
| Kousei vs Jun | 31–20 | 60.78% |
| Kousei vs Raven | 21–30 | 41.18% |
| Kousei vs Paul | 25–24 | 51.02% |
| Kousei vs Asuka | 23–24 | 48.94% |
| Kousei vs Nina | 28–19 | 59.57% |
| Kousei vs Lars | 26–18 | 59.09% |
| Kousei vs Feng | 25–18 | 58.14% |
| Kousei vs Claudio | 23–18 | 56.10% |
| Kousei vs Azucena | 21–19 | 52.50% |
| Kousei vs Lili | 18–20 | 47.37% |
| Kousei vs Leo | 18–16 | 52.94% |
| Kousei vs Eddy | 19–14 | 57.58% |
| Kousei vs Victor | 16–15 | 51.61% |
| Kousei vs Jack-8 | 13–14 | 48.15% |
| Kousei vs Devil Jin | 13–13 | 50.00% |
| Kousei vs Alisa | 10–15 | 40.00% |
| Kousei vs Kuma | 11–14 | 44.00% |
| Kousei vs Leroy | 10–15 | 40.00% |
| Kousei vs Lidia | 9–11 | 45.00% |
| Kousei vs Clive | 7–12 | 36.84% |
| Kousei vs Shaheen | 8–9–1 | 47.06% |
| Kousei vs Zafina | 11–7 | 61.11% |
| Kousei vs Miary Zo | 11–6 | 64.71% |
| Kousei vs Fahkumram | 4–5 | 44.44% |
| Kousei vs Armor King | 3–3 | 50.00% |
| Kousei vs Panda | 0–5 | 0.00% |
| Kousei vs Anna | 1–1 | 50.00% |
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.