| Kojiro vs Reina | 40–16 | 71.43% |
| Kojiro vs Jin | 22–27 | 44.90% |
| Kojiro vs Kazuya | 25–24 | 51.02% |
| Kojiro vs Steve | 29–20 | 59.18% |
| Kojiro vs King | 23–18 | 56.10% |
| Kojiro vs Law | 20–17 | 54.05% |
| Kojiro vs Dragunov | 17–14 | 54.84% |
| Kojiro vs Lars | 14–16 | 46.67% |
| Kojiro vs Lidia | 15–15 | 50.00% |
| Kojiro vs Hwoarang | 14–15 | 48.28% |
| Kojiro vs Asuka | 17–11 | 60.71% |
| Kojiro vs Bryan | 13–12 | 52.00% |
| Kojiro vs Azucena | 12–10 | 54.55% |
| Kojiro vs Lee | 13–8 | 61.90% |
| Kojiro vs Clive | 10–11 | 47.62% |
| Kojiro vs Devil Jin | 10–9 | 52.63% |
| Kojiro vs Lili | 12–7 | 63.16% |
| Kojiro vs Jun | 11–8 | 57.89% |
| Kojiro vs Victor | 13–6 | 68.42% |
| Kojiro vs Kuma | 14–4 | 77.78% |
| Kojiro vs Leo | 10–7 | 58.82% |
| Kojiro vs Claudio | 13–4 | 76.47% |
| Kojiro vs Eddy | 8–9 | 47.06% |
| Kojiro vs Jack-8 | 8–8 | 50.00% |
| Kojiro vs Paul | 10–5 | 66.67% |
| Kojiro vs Nina | 9–5 | 64.29% |
| Kojiro vs Yoshimitsu | 8–5 | 61.54% |
| Kojiro vs Raven | 7–6 | 53.85% |
| Kojiro vs Fahkumram | 8–5 | 61.54% |
| Kojiro vs Zafina | 10–2 | 83.33% |
| Kojiro vs Xiaoyu | 8–1 | 88.89% |
| Kojiro vs Alisa | 5–4 | 55.56% |
| Kojiro vs Feng | 4–4 | 50.00% |
| Kojiro vs Leroy | 3–5 | 37.50% |
| Kojiro vs Heihachi | 7–1 | 87.50% |
| Kojiro vs Anna | 5–3 | 62.50% |
| Kojiro vs Shaheen | 3–0 | 100.00% |
| Kojiro vs Panda | 1–2 | 33.33% |
| Kojiro vs Armor King | 2–0 | 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.