| Koko vs Reina | 29–43 | 40.28% |
| Koko vs Jin | 22–49 | 30.99% |
| Koko vs Kazuya | 30–41 | 42.25% |
| Koko vs King | 24–35 | 40.68% |
| Koko vs Clive | 14–40 | 25.93% |
| Koko vs Hwoarang | 20–31 | 39.22% |
| Koko vs Steve | 18–33 | 35.29% |
| Koko vs Law | 18–28 | 39.13% |
| Koko vs Lili | 21–22 | 48.84% |
| Koko vs Heihachi | 12–26 | 31.58% |
| Koko vs Alisa | 14–19 | 42.42% |
| Koko vs Jun | 16–17 | 48.48% |
| Koko vs Lars | 13–19 | 40.62% |
| Koko vs Lidia | 16–16 | 50.00% |
| Koko vs Dragunov | 7–24 | 22.58% |
| Koko vs Yoshimitsu | 15–14 | 51.72% |
| Koko vs Lee | 9–19 | 32.14% |
| Koko vs Bryan | 9–18 | 33.33% |
| Koko vs Azucena | 5–20 | 20.00% |
| Koko vs Xiaoyu | 10–14 | 41.67% |
| Koko vs Eddy | 5–19 | 20.83% |
| Koko vs Asuka | 9–13 | 40.91% |
| Koko vs Paul | 7–13 | 35.00% |
| Koko vs Raven | 8–12 | 40.00% |
| Koko vs Nina | 12–7 | 63.16% |
| Koko vs Jack-8 | 7–10 | 41.18% |
| Koko vs Victor | 9–8 | 52.94% |
| Koko vs Fahkumram | 6–11 | 35.29% |
| Koko vs Devil Jin | 6–8 | 42.86% |
| Koko vs Leroy | 5–7 | 41.67% |
| Koko vs Leo | 5–5 | 50.00% |
| Koko vs Kuma | 4–6 | 40.00% |
| Koko vs Feng | 3–6 | 33.33% |
| Koko vs Claudio | 1–6 | 14.29% |
| Koko vs Shaheen | 4–2 | 66.67% |
| Koko vs Panda | 1–4 | 20.00% |
| Koko vs Zafina | 0–4 | 0.00% |
| Koko vs Anna | 0–3 | 0.00% |
| Koko vs Miary Zo | 0–1 | 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.