| MadShellfish vs Steve | 7–13 | 35.00% |
| MadShellfish vs Paul | 6–9 | 40.00% |
| MadShellfish vs King | 5–10 | 33.33% |
| MadShellfish vs Law | 5–7 | 41.67% |
| MadShellfish vs Jin | 1–11 | 8.33% |
| MadShellfish vs Jun | 5–7 | 41.67% |
| MadShellfish vs Eddy | 0–12 | 0.00% |
| MadShellfish vs Reina | 5–6 | 45.45% |
| MadShellfish vs Claudio | 4–4 | 50.00% |
| MadShellfish vs Raven | 4–4 | 50.00% |
| MadShellfish vs Yoshimitsu | 4–3 | 57.14% |
| MadShellfish vs Hwoarang | 2–5 | 28.57% |
| MadShellfish vs Asuka | 2–5 | 28.57% |
| MadShellfish vs Bryan | 3–3 | 50.00% |
| MadShellfish vs Lili | 3–3 | 50.00% |
| MadShellfish vs Kazuya | 3–2 | 60.00% |
| MadShellfish vs Dragunov | 2–3 | 40.00% |
| MadShellfish vs Lidia | 4–1 | 80.00% |
| MadShellfish vs Heihachi | 2–3 | 40.00% |
| MadShellfish vs Azucena | 1–3 | 25.00% |
| MadShellfish vs Feng | 0–3 | 0.00% |
| MadShellfish vs Lars | 1–2 | 33.33% |
| MadShellfish vs Alisa | 1–2 | 33.33% |
| MadShellfish vs Lee | 0–3 | 0.00% |
| MadShellfish vs Leroy | 2–1 | 66.67% |
| MadShellfish vs Jack-8 | 0–2 | 0.00% |
| MadShellfish vs Leo | 0–2 | 0.00% |
| MadShellfish vs Zafina | 0–2 | 0.00% |
| MadShellfish vs Victor | 1–1 | 50.00% |
| MadShellfish vs Xiaoyu | 0–1 | 0.00% |
| MadShellfish vs Nina | 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.