| Kojin vs Reina | 4–9 | 30.77% |
| Kojin vs Lili | 5–7 | 41.67% |
| Kojin vs Jun | 6–6 | 50.00% |
| Kojin vs Steve | 7–4 | 63.64% |
| Kojin vs King | 5–5 | 50.00% |
| Kojin vs Clive | 3–3 | 50.00% |
| Kojin vs Asuka | 4–1 | 80.00% |
| Kojin vs Leroy | 3–2 | 60.00% |
| Kojin vs Paul | 1–3 | 25.00% |
| Kojin vs Law | 2–2 | 50.00% |
| Kojin vs Jin | 0–4 | 0.00% |
| Kojin vs Dragunov | 1–3 | 25.00% |
| Kojin vs Kuma | 1–3 | 25.00% |
| Kojin vs Victor | 0–4 | 0.00% |
| Kojin vs Yoshimitsu | 3–0 | 100.00% |
| Kojin vs Bryan | 0–3 | 0.00% |
| Kojin vs Zafina | 2–1 | 66.67% |
| Kojin vs Raven | 2–1 | 66.67% |
| Kojin vs Xiaoyu | 2–0 | 100.00% |
| Kojin vs Lars | 1–1 | 50.00% |
| Kojin vs Alisa | 0–2 | 0.00% |
| Kojin vs Nina | 2–0 | 100.00% |
| Kojin vs Lee | 2–0 | 100.00% |
| Kojin vs Azucena | 2–0 | 100.00% |
| Kojin vs Lidia | 0–2 | 0.00% |
| Kojin vs Hwoarang | 0–1 | 0.00% |
| Kojin vs Eddy | 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.