| KeijinOS vs Kazuya | 56–30 | 65.12% |
| KeijinOS vs Jin | 42–38 | 52.50% |
| KeijinOS vs Reina | 35–38 | 47.95% |
| KeijinOS vs Hwoarang | 29–40 | 42.03% |
| KeijinOS vs King | 30–34 | 46.88% |
| KeijinOS vs Steve | 33–29 | 53.23% |
| KeijinOS vs Heihachi | 29–31 | 48.33% |
| KeijinOS vs Bryan | 29–18 | 61.70% |
| KeijinOS vs Yoshimitsu | 22–23 | 48.89% |
| KeijinOS vs Devil Jin | 18–26 | 40.91% |
| KeijinOS vs Lili | 18–25 | 41.86% |
| KeijinOS vs Dragunov | 21–18 | 53.85% |
| KeijinOS vs Law | 22–14 | 61.11% |
| KeijinOS vs Asuka | 18–18 | 50.00% |
| KeijinOS vs Eddy | 16–13 | 55.17% |
| KeijinOS vs Alisa | 15–10 | 60.00% |
| KeijinOS vs Azucena | 15–10 | 60.00% |
| KeijinOS vs Paul | 11–13 | 45.83% |
| KeijinOS vs Lars | 4–18 | 18.18% |
| KeijinOS vs Feng | 7–14 | 33.33% |
| KeijinOS vs Nina | 9–12 | 42.86% |
| KeijinOS vs Shaheen | 10–10 | 50.00% |
| KeijinOS vs Jun | 9–10 | 47.37% |
| KeijinOS vs Lee | 3–15 | 16.67% |
| KeijinOS vs Jack-8 | 3–12 | 20.00% |
| KeijinOS vs Victor | 8–6 | 57.14% |
| KeijinOS vs Xiaoyu | 5–7 | 41.67% |
| KeijinOS vs Raven | 8–4 | 66.67% |
| KeijinOS vs Lidia | 3–9 | 25.00% |
| KeijinOS vs Leroy | 5–4 | 55.56% |
| KeijinOS vs Panda | 3–5 | 37.50% |
| KeijinOS vs Leo | 3–4 | 42.86% |
| KeijinOS vs Kuma | 3–3 | 50.00% |
| KeijinOS vs Zafina | 3–2 | 60.00% |
| KeijinOS vs Claudio | 1–3 | 25.00% |
| KeijinOS vs Clive | 0–2 | 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.