| Mad Marsh vs King | 11–14 | 44.00% |
| Mad Marsh vs Lidia | 7–15 | 31.82% |
| Mad Marsh vs Law | 9–12 | 42.86% |
| Mad Marsh vs Eddy | 7–13 | 35.00% |
| Mad Marsh vs Bryan | 7–9 | 43.75% |
| Mad Marsh vs Jin | 7–8 | 46.67% |
| Mad Marsh vs Reina | 9–6 | 60.00% |
| Mad Marsh vs Hwoarang | 6–7 | 46.15% |
| Mad Marsh vs Lili | 4–8 | 33.33% |
| Mad Marsh vs Victor | 5–6 | 45.45% |
| Mad Marsh vs Paul | 4–6 | 40.00% |
| Mad Marsh vs Yoshimitsu | 5–5 | 50.00% |
| Mad Marsh vs Leo | 4–6 | 40.00% |
| Mad Marsh vs Jun | 2–8 | 20.00% |
| Mad Marsh vs Steve | 8–1 | 88.89% |
| Mad Marsh vs Xiaoyu | 4–4 | 50.00% |
| Mad Marsh vs Kazuya | 3–5 | 37.50% |
| Mad Marsh vs Nina | 2–5 | 28.57% |
| Mad Marsh vs Asuka | 4–2 | 66.67% |
| Mad Marsh vs Dragunov | 1–4–1 | 20.00% |
| Mad Marsh vs Alisa | 3–3 | 50.00% |
| Mad Marsh vs Claudio | 2–4 | 33.33% |
| Mad Marsh vs Shaheen | 1–5 | 16.67% |
| Mad Marsh vs Feng | 0–5 | 0.00% |
| Mad Marsh vs Leroy | 2–3 | 40.00% |
| Mad Marsh vs Lars | 0–4 | 0.00% |
| Mad Marsh vs Azucena | 3–1 | 75.00% |
| Mad Marsh vs Devil Jin | 2–1 | 66.67% |
| Mad Marsh vs Raven | 1–2 | 33.33% |
| Mad Marsh vs Jack-8 | 1–2 | 33.33% |
| Mad Marsh vs Kuma | 1–1 | 50.00% |
| Mad Marsh vs Lee | 1–0 | 100.00% |
| Mad Marsh vs Zafina | 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.