| EndlessCosmos vs Armor King | 13–14 | 48.15% |
| EndlessCosmos vs Hwoarang | 9–11 | 45.00% |
| EndlessCosmos vs Kazuya | 15–4 | 78.95% |
| EndlessCosmos vs Eddy | 6–12 | 33.33% |
| EndlessCosmos vs Bryan | 9–7 | 56.25% |
| EndlessCosmos vs Azucena | 8–8 | 50.00% |
| EndlessCosmos vs Victor | 7–7 | 50.00% |
| EndlessCosmos vs Steve | 8–5 | 61.54% |
| EndlessCosmos vs Jin | 5–7 | 41.67% |
| EndlessCosmos vs King | 4–7 | 36.36% |
| EndlessCosmos vs Law | 4–6 | 40.00% |
| EndlessCosmos vs Feng | 6–4 | 60.00% |
| EndlessCosmos vs Alisa | 4–6 | 40.00% |
| EndlessCosmos vs Jun | 8–2 | 80.00% |
| EndlessCosmos vs Asuka | 5–4 | 55.56% |
| EndlessCosmos vs Fahkumram | 6–3 | 66.67% |
| EndlessCosmos vs Yoshimitsu | 4–4 | 50.00% |
| EndlessCosmos vs Devil Jin | 5–3 | 62.50% |
| EndlessCosmos vs Clive | 2–6 | 25.00% |
| EndlessCosmos vs Lili | 1–5 | 16.67% |
| EndlessCosmos vs Dragunov | 3–3 | 50.00% |
| EndlessCosmos vs Xiaoyu | 2–3 | 40.00% |
| EndlessCosmos vs Lars | 3–2 | 60.00% |
| EndlessCosmos vs Lidia | 2–3 | 40.00% |
| EndlessCosmos vs Lee | 3–1 | 75.00% |
| EndlessCosmos vs Reina | 4–0 | 100.00% |
| EndlessCosmos vs Heihachi | 1–3 | 25.00% |
| EndlessCosmos vs Shaheen | 1–2 | 33.33% |
| EndlessCosmos vs Leroy | 2–1 | 66.67% |
| EndlessCosmos vs Panda | 0–2 | 0.00% |
| EndlessCosmos vs Raven | 2–0 | 100.00% |
| EndlessCosmos vs Jack-8 | 0–1 | 0.00% |
| EndlessCosmos vs Leo | 0–1 | 0.00% |
| EndlessCosmos vs Claudio | 1–0 | 100.00% |
| EndlessCosmos vs Nina | 0–1 | 0.00% |
| EndlessCosmos vs Kuma | 1–0 | 100.00% |
| EndlessCosmos 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.