| Medusifer vs Clive | 48–134–1 | 26.37% |
| Medusifer vs King | 65–93 | 41.14% |
| Medusifer vs Jin | 50–78 | 39.06% |
| Medusifer vs Kazuya | 39–69 | 36.11% |
| Medusifer vs Reina | 52–47 | 52.53% |
| Medusifer vs Heihachi | 35–53 | 39.77% |
| Medusifer vs Hwoarang | 28–51 | 35.44% |
| Medusifer vs Steve | 28–51 | 35.44% |
| Medusifer vs Bryan | 30–46 | 39.47% |
| Medusifer vs Dragunov | 26–46 | 36.11% |
| Medusifer vs Law | 31–40 | 43.66% |
| Medusifer vs Asuka | 20–38 | 34.48% |
| Medusifer vs Jun | 24–32 | 42.86% |
| Medusifer vs Yoshimitsu | 27–26 | 50.94% |
| Medusifer vs Xiaoyu | 33–20 | 62.26% |
| Medusifer vs Lili | 16–36 | 30.77% |
| Medusifer vs Lars | 16–36 | 30.77% |
| Medusifer vs Lee | 16–34 | 32.00% |
| Medusifer vs Azucena | 10–40 | 20.00% |
| Medusifer vs Leo | 23–26 | 46.94% |
| Medusifer vs Eddy | 20–27 | 42.55% |
| Medusifer vs Lidia | 19–28 | 40.43% |
| Medusifer vs Nina | 15–26 | 36.59% |
| Medusifer vs Paul | 14–21 | 40.00% |
| Medusifer vs Devil Jin | 6–26 | 18.75% |
| Medusifer vs Raven | 14–17 | 45.16% |
| Medusifer vs Victor | 5–24 | 17.24% |
| Medusifer vs Jack-8 | 12–16 | 42.86% |
| Medusifer vs Leroy | 11–16 | 40.74% |
| Medusifer vs Alisa | 7–19 | 26.92% |
| Medusifer vs Kuma | 4–15 | 21.05% |
| Medusifer vs Feng | 6–12 | 33.33% |
| Medusifer vs Shaheen | 5–10 | 33.33% |
| Medusifer vs Zafina | 9–5 | 64.29% |
| Medusifer vs Claudio | 3–6 | 33.33% |
| Medusifer vs Panda | 1–5 | 16.67% |
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.