| Kosa08 vs King | 23–23 | 50.00% |
| Kosa08 vs Fahkumram | 9–25 | 26.47% |
| Kosa08 vs Jin | 19–11 | 63.33% |
| Kosa08 vs Kazuya | 17–11 | 60.71% |
| Kosa08 vs Law | 12–11 | 52.17% |
| Kosa08 vs Hwoarang | 10–8 | 55.56% |
| Kosa08 vs Azucena | 12–6 | 66.67% |
| Kosa08 vs Reina | 9–5 | 64.29% |
| Kosa08 vs Steve | 5–8 | 38.46% |
| Kosa08 vs Armor King | 7–6 | 53.85% |
| Kosa08 vs Paul | 3–8 | 27.27% |
| Kosa08 vs Victor | 4–7 | 36.36% |
| Kosa08 vs Eddy | 5–6 | 45.45% |
| Kosa08 vs Heihachi | 6–5 | 54.55% |
| Kosa08 vs Yoshimitsu | 4–6 | 40.00% |
| Kosa08 vs Asuka | 6–4 | 60.00% |
| Kosa08 vs Dragunov | 2–7 | 22.22% |
| Kosa08 vs Bryan | 5–3 | 62.50% |
| Kosa08 vs Zafina | 4–4 | 50.00% |
| Kosa08 vs Devil Jin | 5–2 | 71.43% |
| Kosa08 vs Lee | 5–2 | 71.43% |
| Kosa08 vs Lidia | 0–7 | 0.00% |
| Kosa08 vs Clive | 4–3 | 57.14% |
| Kosa08 vs Xiaoyu | 2–4 | 33.33% |
| Kosa08 vs Alisa | 1–5 | 16.67% |
| Kosa08 vs Claudio | 1–5 | 16.67% |
| Kosa08 vs Anna | 1–5 | 16.67% |
| Kosa08 vs Feng | 2–3 | 40.00% |
| Kosa08 vs Nina | 2–3 | 40.00% |
| Kosa08 vs Jun | 3–2 | 60.00% |
| Kosa08 vs Raven | 2–3 | 40.00% |
| Kosa08 vs Lili | 0–3 | 0.00% |
| Kosa08 vs Jack-8 | 1–1 | 50.00% |
| Kosa08 vs Kuma | 2–0 | 100.00% |
| Kosa08 vs Leroy | 0–2 | 0.00% |
| Kosa08 vs Shaheen | 1–0 | 100.00% |
| Kosa08 vs Panda | 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.