| Koyanskaya vs Law | 5–4 | 55.56% |
| Koyanskaya vs Jun | 6–2 | 75.00% |
| Koyanskaya vs Anna | 5–3 | 62.50% |
| Koyanskaya vs Kazuya | 5–2 | 71.43% |
| Koyanskaya vs Azucena | 4–2 | 66.67% |
| Koyanskaya vs Yoshimitsu | 0–4 | 0.00% |
| Koyanskaya vs Heihachi | 0–4 | 0.00% |
| Koyanskaya vs Asuka | 3–0 | 100.00% |
| Koyanskaya vs Devil Jin | 2–1 | 66.67% |
| Koyanskaya vs Leo | 1–2 | 33.33% |
| Koyanskaya vs Nina | 2–1 | 66.67% |
| Koyanskaya vs Jin | 1–1 | 50.00% |
| Koyanskaya vs Steve | 2–0 | 100.00% |
| Koyanskaya vs Dragunov | 0–2 | 0.00% |
| Koyanskaya vs Alisa | 1–1 | 50.00% |
| Koyanskaya vs Panda | 2–0 | 100.00% |
| Koyanskaya vs Leroy | 2–0 | 100.00% |
| Koyanskaya vs Reina | 1–1 | 50.00% |
| Koyanskaya vs King | 0–1 | 0.00% |
| Koyanskaya vs Clive | 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.