| Cosmonautilus vs Kazuya | 14–9 | 60.87% |
| Cosmonautilus vs Jin | 10–9 | 52.63% |
| Cosmonautilus vs Hwoarang | 6–10 | 37.50% |
| Cosmonautilus vs Armor King | 9–7 | 56.25% |
| Cosmonautilus vs Law | 10–5 | 66.67% |
| Cosmonautilus vs Miary Zo | 10–4 | 71.43% |
| Cosmonautilus vs Heihachi | 7–6 | 53.85% |
| Cosmonautilus vs Dragunov | 8–4 | 66.67% |
| Cosmonautilus vs Eddy | 5–5 | 50.00% |
| Cosmonautilus vs Leroy | 4–5 | 44.44% |
| Cosmonautilus vs Victor | 6–3 | 66.67% |
| Cosmonautilus vs King | 4–4 | 50.00% |
| Cosmonautilus vs Lars | 6–2 | 75.00% |
| Cosmonautilus vs Nina | 7–1 | 87.50% |
| Cosmonautilus vs Steve | 5–2 | 71.43% |
| Cosmonautilus vs Alisa | 5–1 | 83.33% |
| Cosmonautilus vs Jun | 2–3 | 40.00% |
| Cosmonautilus vs Reina | 3–2 | 60.00% |
| Cosmonautilus vs Paul | 0–4 | 0.00% |
| Cosmonautilus vs Bryan | 3–1 | 75.00% |
| Cosmonautilus vs Leo | 1–3 | 25.00% |
| Cosmonautilus vs Zafina | 2–2 | 50.00% |
| Cosmonautilus vs Lidia | 4–0 | 100.00% |
| Cosmonautilus vs Xiaoyu | 1–2 | 33.33% |
| Cosmonautilus vs Jack-8 | 2–0 | 100.00% |
| Cosmonautilus vs Asuka | 2–0 | 100.00% |
| Cosmonautilus vs Devil Jin | 1–1 | 50.00% |
| Cosmonautilus vs Lili | 1–1 | 50.00% |
| Cosmonautilus vs Shaheen | 2–0 | 100.00% |
| Cosmonautilus vs Lee | 0–2 | 0.00% |
| Cosmonautilus vs Clive | 1–1 | 50.00% |
| Cosmonautilus vs Raven | 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.