| Koko12 vs Kazuya | 15–13 | 53.57% |
| Koko12 vs Dragunov | 8–19 | 29.63% |
| Koko12 vs King | 5–18 | 21.74% |
| Koko12 vs Jin | 8–15 | 34.78% |
| Koko12 vs Law | 10–8 | 55.56% |
| Koko12 vs Steve | 7–10 | 41.18% |
| Koko12 vs Yoshimitsu | 7–8 | 46.67% |
| Koko12 vs Asuka | 4–11 | 26.67% |
| Koko12 vs Paul | 4–10 | 28.57% |
| Koko12 vs Nina | 8–6 | 57.14% |
| Koko12 vs Jun | 6–8 | 42.86% |
| Koko12 vs Reina | 4–9 | 30.77% |
| Koko12 vs Lee | 2–9 | 18.18% |
| Koko12 vs Azucena | 5–4 | 55.56% |
| Koko12 vs Hwoarang | 5–3 | 62.50% |
| Koko12 vs Bryan | 6–2 | 75.00% |
| Koko12 vs Alisa | 5–3 | 62.50% |
| Koko12 vs Heihachi | 2–5 | 28.57% |
| Koko12 vs Feng | 2–4 | 33.33% |
| Koko12 vs Devil Jin | 1–4 | 20.00% |
| Koko12 vs Leo | 0–5 | 0.00% |
| Koko12 vs Shaheen | 1–2 | 33.33% |
| Koko12 vs Victor | 0–3 | 0.00% |
| Koko12 vs Xiaoyu | 0–2 | 0.00% |
| Koko12 vs Lili | 1–1 | 50.00% |
| Koko12 vs Leroy | 0–2 | 0.00% |
| Koko12 vs Eddy | 0–2 | 0.00% |
| Koko12 vs Lidia | 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.