| Koka vs Kazuya | 44–32 | 57.89% |
| Koka vs Armor King | 27–22 | 55.10% |
| Koka vs King | 20–23 | 46.51% |
| Koka vs Paul | 26–15 | 63.41% |
| Koka vs Reina | 30–11 | 73.17% |
| Koka vs Bryan | 21–16 | 56.76% |
| Koka vs Jin | 16–19 | 45.71% |
| Koka vs Clive | 27–8 | 77.14% |
| Koka vs Devil Jin | 22–11 | 66.67% |
| Koka vs Hwoarang | 13–18 | 41.94% |
| Koka vs Lars | 12–18 | 40.00% |
| Koka vs Yoshimitsu | 9–15 | 37.50% |
| Koka vs Asuka | 16–8 | 66.67% |
| Koka vs Steve | 15–8 | 65.22% |
| Koka vs Xiaoyu | 10–10 | 50.00% |
| Koka vs Azucena | 13–7 | 65.00% |
| Koka vs Jun | 13–6 | 68.42% |
| Koka vs Eddy | 10–9 | 52.63% |
| Koka vs Victor | 10–8 | 55.56% |
| Koka vs Lili | 9–8 | 52.94% |
| Koka vs Alisa | 6–11 | 35.29% |
| Koka vs Leroy | 8–9 | 47.06% |
| Koka vs Claudio | 10–6 | 62.50% |
| Koka vs Lee | 9–7 | 56.25% |
| Koka vs Heihachi | 10–6 | 62.50% |
| Koka vs Law | 8–7 | 53.33% |
| Koka vs Feng | 8–6 | 57.14% |
| Koka vs Dragunov | 5–8 | 38.46% |
| Koka vs Nina | 8–4 | 66.67% |
| Koka vs Anna | 10–2 | 83.33% |
| Koka vs Fahkumram | 5–6 | 45.45% |
| Koka vs Shaheen | 4–5 | 44.44% |
| Koka vs Raven | 6–3 | 66.67% |
| Koka vs Jack-8 | 2–6 | 25.00% |
| Koka vs Lidia | 2–4 | 33.33% |
| Koka vs Kuma | 1–4 | 20.00% |
| Koka vs Panda | 1–0 | 100.00% |
| Koka vs Zafina | 0–1 | 0.00% |
| Koka vs Miary Zo | 1–0 | 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.