| kapi9990 vs Jin | 9–12 | 42.86% |
| kapi9990 vs Reina | 7–3 | 70.00% |
| kapi9990 vs Hwoarang | 3–6 | 33.33% |
| kapi9990 vs Kazuya | 8–1 | 88.89% |
| kapi9990 vs Leroy | 5–2 | 71.43% |
| kapi9990 vs Yoshimitsu | 4–2 | 66.67% |
| kapi9990 vs Dragunov | 3–3 | 50.00% |
| kapi9990 vs Azucena | 4–1 | 80.00% |
| kapi9990 vs Victor | 3–2 | 60.00% |
| kapi9990 vs Eddy | 2–3 | 40.00% |
| kapi9990 vs King | 1–3 | 25.00% |
| kapi9990 vs Nina | 1–3 | 25.00% |
| kapi9990 vs Lee | 4–0 | 100.00% |
| kapi9990 vs Paul | 0–2 | 0.00% |
| kapi9990 vs Jack-8 | 1–1 | 50.00% |
| kapi9990 vs Asuka | 2–0 | 100.00% |
| kapi9990 vs Lili | 1–1 | 50.00% |
| kapi9990 vs Jun | 2–0 | 100.00% |
| kapi9990 vs Raven | 2–0 | 100.00% |
| kapi9990 vs Lidia | 1–1 | 50.00% |
| kapi9990 vs Law | 0–1 | 0.00% |
| kapi9990 vs Xiaoyu | 1–0 | 100.00% |
| kapi9990 vs Devil Jin | 0–1 | 0.00% |
| kapi9990 vs Lars | 1–0 | 100.00% |
| kapi9990 vs Shaheen | 0–1 | 0.00% |
| kapi9990 vs Bryan | 0–1 | 0.00% |
| kapi9990 vs Leo | 1–0 | 100.00% |
| kapi9990 vs Alisa | 0–1 | 0.00% |
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.