| Medusa vs Reina | 4–7 | 36.36% |
| Medusa vs Hwoarang | 3–7 | 30.00% |
| Medusa vs Nina | 3–5 | 37.50% |
| Medusa vs Eddy | 0–8 | 0.00% |
| Medusa vs Law | 1–6 | 14.29% |
| Medusa vs Paul | 3–3 | 50.00% |
| Medusa vs Feng | 3–3 | 50.00% |
| Medusa vs Dragunov | 2–4 | 33.33% |
| Medusa vs Lars | 2–4 | 33.33% |
| Medusa vs Jin | 3–2 | 60.00% |
| Medusa vs Kazuya | 4–1 | 80.00% |
| Medusa vs Kuma | 4–1 | 80.00% |
| Medusa vs Jun | 3–2 | 60.00% |
| Medusa vs King | 0–5 | 0.00% |
| Medusa vs Steve | 4–0 | 100.00% |
| Medusa vs Claudio | 4–0 | 100.00% |
| Medusa vs Shaheen | 4–0 | 100.00% |
| Medusa vs Victor | 2–2 | 50.00% |
| Medusa vs Yoshimitsu | 0–3 | 0.00% |
| Medusa vs Bryan | 1–2 | 33.33% |
| Medusa vs Leo | 0–3 | 0.00% |
| Medusa vs Devil Jin | 1–2 | 33.33% |
| Medusa vs Lili | 0–3 | 0.00% |
| Medusa vs Azucena | 2–1 | 66.67% |
| Medusa vs Alisa | 0–2 | 0.00% |
| Medusa vs Asuka | 2–0 | 100.00% |
| Medusa vs Raven | 2–0 | 100.00% |
| Medusa vs Lee | 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.