| Cosmo vs Dragunov | 12–10 | 54.55% |
| Cosmo vs Jin | 15–4 | 78.95% |
| Cosmo vs Reina | 15–4 | 78.95% |
| Cosmo vs Bryan | 6–10 | 37.50% |
| Cosmo vs Heihachi | 11–5 | 68.75% |
| Cosmo vs King | 11–4 | 73.33% |
| Cosmo vs Steve | 8–7 | 53.33% |
| Cosmo vs Clive | 6–9 | 40.00% |
| Cosmo vs Kazuya | 4–10 | 28.57% |
| Cosmo vs Lee | 8–6 | 57.14% |
| Cosmo vs Leroy | 5–7 | 41.67% |
| Cosmo vs Azucena | 5–4 | 55.56% |
| Cosmo vs Eddy | 6–3 | 66.67% |
| Cosmo vs Yoshimitsu | 5–3 | 62.50% |
| Cosmo vs Asuka | 4–4 | 50.00% |
| Cosmo vs Lili | 5–3 | 62.50% |
| Cosmo vs Victor | 6–2 | 75.00% |
| Cosmo vs Feng | 3–3 | 50.00% |
| Cosmo vs Zafina | 2–4 | 33.33% |
| Cosmo vs Xiaoyu | 2–3 | 40.00% |
| Cosmo vs Paul | 2–2 | 50.00% |
| Cosmo vs Hwoarang | 2–2 | 50.00% |
| Cosmo vs Jack-8 | 4–0 | 100.00% |
| Cosmo vs Panda | 1–2 | 33.33% |
| Cosmo vs Law | 2–0 | 100.00% |
| Cosmo vs Leo | 0–2 | 0.00% |
| Cosmo vs Lars | 2–0 | 100.00% |
| Cosmo vs Claudio | 2–0 | 100.00% |
| Cosmo vs Shaheen | 0–2 | 0.00% |
| Cosmo vs Jun | 2–0 | 100.00% |
| Cosmo vs Lidia | 1–0 | 100.00% |
| Cosmo vs Anna | 1–0 | 100.00% |
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.