| Cosmonaut Hour vs King | 8–8 | 50.00% |
| Cosmonaut Hour vs Kazuya | 7–8 | 46.67% |
| Cosmonaut Hour vs Reina | 9–5 | 64.29% |
| Cosmonaut Hour vs Steve | 6–6 | 50.00% |
| Cosmonaut Hour vs Azucena | 7–4 | 63.64% |
| Cosmonaut Hour vs Hwoarang | 3–5 | 37.50% |
| Cosmonaut Hour vs Jin | 4–4 | 50.00% |
| Cosmonaut Hour vs Lars | 5–3 | 62.50% |
| Cosmonaut Hour vs Lili | 3–4 | 42.86% |
| Cosmonaut Hour vs Law | 2–4 | 33.33% |
| Cosmonaut Hour vs Victor | 4–2 | 66.67% |
| Cosmonaut Hour vs Xiaoyu | 2–3 | 40.00% |
| Cosmonaut Hour vs Lee | 4–1 | 80.00% |
| Cosmonaut Hour vs Paul | 2–2 | 50.00% |
| Cosmonaut Hour vs Jack-8 | 0–4 | 0.00% |
| Cosmonaut Hour vs Shaheen | 2–2 | 50.00% |
| Cosmonaut Hour vs Bryan | 1–2 | 33.33% |
| Cosmonaut Hour vs Alisa | 1–2 | 33.33% |
| Cosmonaut Hour vs Eddy | 3–0 | 100.00% |
| Cosmonaut Hour vs Anna | 2–1 | 66.67% |
| Cosmonaut Hour vs Dragunov | 2–0 | 100.00% |
| Cosmonaut Hour vs Zafina | 0–2 | 0.00% |
| Cosmonaut Hour vs Jun | 2–0 | 100.00% |
| Cosmonaut Hour vs Lidia | 0–2 | 0.00% |
| Cosmonaut Hour vs Heihachi | 0–2 | 0.00% |
| Cosmonaut Hour vs Armor King | 2–0 | 100.00% |
| Cosmonaut Hour vs Fahkumram | 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.