| Kosmos vs Reina | 14–7 | 66.67% |
| Kosmos vs Clive | 11–8 | 57.89% |
| Kosmos vs Heihachi | 9–9 | 50.00% |
| Kosmos vs Kazuya | 4–8 | 33.33% |
| Kosmos vs Jin | 5–6 | 45.45% |
| Kosmos vs Steve | 6–5 | 54.55% |
| Kosmos vs Dragunov | 7–4 | 63.64% |
| Kosmos vs Jun | 6–3 | 66.67% |
| Kosmos vs King | 3–5 | 37.50% |
| Kosmos vs Devil Jin | 6–2 | 75.00% |
| Kosmos vs Bryan | 5–2 | 71.43% |
| Kosmos vs Lars | 4–3 | 57.14% |
| Kosmos vs Victor | 4–3 | 57.14% |
| Kosmos vs Law | 2–4 | 33.33% |
| Kosmos vs Lili | 5–0 | 100.00% |
| Kosmos vs Lee | 5–0 | 100.00% |
| Kosmos vs Yoshimitsu | 0–4 | 0.00% |
| Kosmos vs Hwoarang | 3–1 | 75.00% |
| Kosmos vs Alisa | 1–2 | 33.33% |
| Kosmos vs Claudio | 2–1 | 66.67% |
| Kosmos vs Xiaoyu | 0–2 | 0.00% |
| Kosmos vs Feng | 0–2 | 0.00% |
| Kosmos vs Shaheen | 2–0 | 100.00% |
| Kosmos vs Panda | 0–2 | 0.00% |
| Kosmos vs Zafina | 2–0 | 100.00% |
| Kosmos vs Leroy | 2–0 | 100.00% |
| Kosmos vs Lidia | 2–0 | 100.00% |
| Kosmos vs Kuma | 0–1 | 0.00% |
| Kosmos vs Azucena | 1–0 | 100.00% |
| Kosmos vs Eddy | 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.