| Cosm vs Reina | 11–5 | 68.75% |
| Cosm vs Jin | 10–5 | 66.67% |
| Cosm vs Kazuya | 10–5 | 66.67% |
| Cosm vs Dragunov | 7–8 | 46.67% |
| Cosm vs Eddy | 7–8 | 46.67% |
| Cosm vs King | 8–5 | 61.54% |
| Cosm vs Nina | 8–5 | 61.54% |
| Cosm vs Bryan | 6–6 | 50.00% |
| Cosm vs Lili | 6–6 | 50.00% |
| Cosm vs Paul | 5–6 | 45.45% |
| Cosm vs Steve | 5–5 | 50.00% |
| Cosm vs Yoshimitsu | 5–3 | 62.50% |
| Cosm vs Kuma | 3–4 | 42.86% |
| Cosm vs Hwoarang | 5–1 | 83.33% |
| Cosm vs Lee | 1–5 | 16.67% |
| Cosm vs Leroy | 5–1 | 83.33% |
| Cosm vs Azucena | 4–2 | 66.67% |
| Cosm vs Victor | 3–3 | 50.00% |
| Cosm vs Asuka | 3–2 | 60.00% |
| Cosm vs Shaheen | 2–3 | 40.00% |
| Cosm vs Jun | 2–3 | 40.00% |
| Cosm vs Law | 2–2 | 50.00% |
| Cosm vs Devil Jin | 4–0 | 100.00% |
| Cosm vs Leo | 1–2 | 33.33% |
| Cosm vs Jack-8 | 1–1 | 50.00% |
| Cosm vs Feng | 1–1 | 50.00% |
| Cosm vs Lars | 0–2 | 0.00% |
| Cosm vs Claudio | 1–1 | 50.00% |
| Cosm vs Raven | 2–0 | 100.00% |
| Cosm vs Zafina | 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.