| Kokajj4 vs Lili | 17–10 | 62.96% |
| Kokajj4 vs Reina | 14–5 | 73.68% |
| Kokajj4 vs Jin | 11–7 | 61.11% |
| Kokajj4 vs Kazuya | 11–7 | 61.11% |
| Kokajj4 vs Law | 14–2 | 87.50% |
| Kokajj4 vs Hwoarang | 11–3 | 78.57% |
| Kokajj4 vs Steve | 8–6 | 57.14% |
| Kokajj4 vs Jun | 8–2 | 80.00% |
| Kokajj4 vs Bryan | 5–3 | 62.50% |
| Kokajj4 vs Nina | 8–0 | 100.00% |
| Kokajj4 vs Dragunov | 5–2 | 71.43% |
| Kokajj4 vs Alisa | 7–0 | 100.00% |
| Kokajj4 vs King | 4–1 | 80.00% |
| Kokajj4 vs Victor | 2–3 | 40.00% |
| Kokajj4 vs Lee | 4–0 | 100.00% |
| Kokajj4 vs Azucena | 4–0 | 100.00% |
| Kokajj4 vs Jack-8 | 2–1 | 66.67% |
| Kokajj4 vs Claudio | 2–1 | 66.67% |
| Kokajj4 vs Paul | 2–0 | 100.00% |
| Kokajj4 vs Yoshimitsu | 1–1 | 50.00% |
| Kokajj4 vs Xiaoyu | 2–0 | 100.00% |
| Kokajj4 vs Asuka | 2–0 | 100.00% |
| Kokajj4 vs Feng | 2–0 | 100.00% |
| Kokajj4 vs Leo | 0–2 | 0.00% |
| Kokajj4 vs Lars | 1–1 | 50.00% |
| Kokajj4 vs Leroy | 0–2 | 0.00% |
| Kokajj4 vs Eddy | 2–0 | 100.00% |
| Kokajj4 vs Heihachi | 0–2 | 0.00% |
| Kokajj4 vs Kuma | 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.