| Kosimo vs Jin | 15–6 | 71.43% |
| Kosimo vs Clive | 19–2 | 90.48% |
| Kosimo vs King | 9–3 | 75.00% |
| Kosimo vs Hwoarang | 10–2 | 83.33% |
| Kosimo vs Dragunov | 7–5 | 58.33% |
| Kosimo vs Asuka | 7–1 | 87.50% |
| Kosimo vs Lili | 5–3 | 62.50% |
| Kosimo vs Jun | 4–4 | 50.00% |
| Kosimo vs Nina | 4–3 | 57.14% |
| Kosimo vs Yoshimitsu | 5–1 | 83.33% |
| Kosimo vs Lars | 3–3 | 50.00% |
| Kosimo vs Lee | 4–2 | 66.67% |
| Kosimo vs Kuma | 4–2 | 66.67% |
| Kosimo vs Xiaoyu | 2–3 | 40.00% |
| Kosimo vs Claudio | 2–3 | 40.00% |
| Kosimo vs Reina | 3–2 | 60.00% |
| Kosimo vs Azucena | 4–1 | 80.00% |
| Kosimo vs Alisa | 2–2 | 50.00% |
| Kosimo vs Law | 2–1 | 66.67% |
| Kosimo vs Bryan | 1–2 | 33.33% |
| Kosimo vs Kazuya | 2–1 | 66.67% |
| Kosimo vs Jack-8 | 2–1 | 66.67% |
| Kosimo vs Devil Jin | 1–2 | 33.33% |
| Kosimo vs Lidia | 2–1 | 66.67% |
| Kosimo vs Heihachi | 2–1 | 66.67% |
| Kosimo vs Feng | 0–2 | 0.00% |
| Kosimo vs Victor | 0–2 | 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.