| Kojiiya vs Clive | 49–48 | 50.52% |
| Kojiiya vs Kazuya | 41–38 | 51.90% |
| Kojiiya vs Jin | 18–31 | 36.73% |
| Kojiiya vs Heihachi | 18–29 | 38.30% |
| Kojiiya vs Reina | 18–26 | 40.91% |
| Kojiiya vs Bryan | 11–26–1 | 29.73% |
| Kojiiya vs Dragunov | 20–17 | 54.05% |
| Kojiiya vs Steve | 15–17 | 46.88% |
| Kojiiya vs King | 17–11 | 60.71% |
| Kojiiya vs Asuka | 13–15 | 46.43% |
| Kojiiya vs Yoshimitsu | 11–13 | 45.83% |
| Kojiiya vs Victor | 12–9 | 57.14% |
| Kojiiya vs Devil Jin | 8–12 | 40.00% |
| Kojiiya vs Feng | 16–4 | 80.00% |
| Kojiiya vs Paul | 5–14 | 26.32% |
| Kojiiya vs Lidia | 9–9 | 50.00% |
| Kojiiya vs Lili | 9–7 | 56.25% |
| Kojiiya vs Jun | 9–7 | 56.25% |
| Kojiiya vs Nina | 7–8 | 46.67% |
| Kojiiya vs Lee | 11–4 | 73.33% |
| Kojiiya vs Azucena | 9–6 | 60.00% |
| Kojiiya vs Lars | 3–10 | 23.08% |
| Kojiiya vs Kuma | 4–9 | 30.77% |
| Kojiiya vs Law | 6–6 | 50.00% |
| Kojiiya vs Leroy | 6–6 | 50.00% |
| Kojiiya vs Alisa | 5–6 | 45.45% |
| Kojiiya vs Hwoarang | 3–7 | 30.00% |
| Kojiiya vs Shaheen | 3–7 | 30.00% |
| Kojiiya vs Xiaoyu | 3–6 | 33.33% |
| Kojiiya vs Leo | 2–7 | 22.22% |
| Kojiiya vs Raven | 7–0 | 100.00% |
| Kojiiya vs Claudio | 2–4 | 33.33% |
| Kojiiya vs Jack-8 | 0–4 | 0.00% |
| Kojiiya vs Zafina | 2–2 | 50.00% |
| Kojiiya vs Eddy | 1–1 | 50.00% |
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.