| Kosta vs Lidia | 5–7 | 41.67% |
| Kosta vs King | 2–7 | 22.22% |
| Kosta vs Jin | 5–3 | 62.50% |
| Kosta vs Law | 3–4 | 42.86% |
| Kosta vs Jack-8 | 2–5 | 28.57% |
| Kosta vs Devil Jin | 3–4 | 42.86% |
| Kosta vs Azucena | 1–3 | 25.00% |
| Kosta vs Eddy | 2–2 | 50.00% |
| Kosta vs Bryan | 0–3 | 0.00% |
| Kosta vs Kazuya | 2–1 | 66.67% |
| Kosta vs Dragunov | 2–1 | 66.67% |
| Kosta vs Reina | 1–2 | 33.33% |
| Kosta vs Yoshimitsu | 1–1 | 50.00% |
| Kosta vs Hwoarang | 1–1 | 50.00% |
| Kosta vs Alisa | 0–2 | 0.00% |
| Kosta vs Leroy | 2–0 | 100.00% |
| Kosta vs Asuka | 2–0 | 100.00% |
| Kosta vs Zafina | 2–0 | 100.00% |
| Kosta vs Steve | 1–0 | 100.00% |
| Kosta vs Nina | 1–0 | 100.00% |
| Kosta vs Jun | 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.