| Koko vs Jin | 27–16 | 62.79% |
| Koko vs King | 22–18 | 55.00% |
| Koko vs Hwoarang | 17–18 | 48.57% |
| Koko vs Kazuya | 17–15 | 53.12% |
| Koko vs Eddy | 15–12 | 55.56% |
| Koko vs Law | 14–8 | 63.64% |
| Koko vs Azucena | 18–3 | 85.71% |
| Koko vs Dragunov | 6–13 | 31.58% |
| Koko vs Steve | 11–6 | 64.71% |
| Koko vs Alisa | 6–11 | 35.29% |
| Koko vs Paul | 4–12 | 25.00% |
| Koko vs Feng | 9–7 | 56.25% |
| Koko vs Devil Jin | 11–4 | 73.33% |
| Koko vs Lili | 7–8 | 46.67% |
| Koko vs Jun | 11–4 | 73.33% |
| Koko vs Yoshimitsu | 9–5 | 64.29% |
| Koko vs Nina | 9–5 | 64.29% |
| Koko vs Bryan | 7–4 | 63.64% |
| Koko vs Reina | 7–4 | 63.64% |
| Koko vs Jack-8 | 6–3 | 66.67% |
| Koko vs Lars | 5–3 | 62.50% |
| Koko vs Shaheen | 8–0 | 100.00% |
| Koko vs Lee | 6–2 | 75.00% |
| Koko vs Asuka | 5–2 | 71.43% |
| Koko vs Lidia | 2–5 | 28.57% |
| Koko vs Claudio | 4–2 | 66.67% |
| Koko vs Xiaoyu | 4–1 | 80.00% |
| Koko vs Leroy | 1–4 | 20.00% |
| Koko vs Kuma | 1–3 | 25.00% |
| Koko vs Raven | 2–2 | 50.00% |
| Koko vs Leo | 1–2 | 33.33% |
| Koko vs Panda | 1–2 | 33.33% |
| Koko vs Victor | 1–2 | 33.33% |
| Koko vs Zafina | 2–0 | 100.00% |
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.