| Fox Marx vs Kazuya | 11–14 | 44.00% |
| Fox Marx vs King | 14–9 | 60.87% |
| Fox Marx vs Law | 13–8 | 61.90% |
| Fox Marx vs Bryan | 3–12 | 20.00% |
| Fox Marx vs Steve | 12–3 | 80.00% |
| Fox Marx vs Victor | 8–7 | 53.33% |
| Fox Marx vs Lidia | 7–6 | 53.85% |
| Fox Marx vs Hwoarang | 4–8 | 33.33% |
| Fox Marx vs Jin | 7–5 | 58.33% |
| Fox Marx vs Reina | 3–5 | 37.50% |
| Fox Marx vs Xiaoyu | 4–3 | 57.14% |
| Fox Marx vs Jun | 5–2 | 71.43% |
| Fox Marx vs Paul | 2–4 | 33.33% |
| Fox Marx vs Asuka | 2–4 | 33.33% |
| Fox Marx vs Devil Jin | 4–2 | 66.67% |
| Fox Marx vs Dragunov | 1–5 | 16.67% |
| Fox Marx vs Lars | 4–2 | 66.67% |
| Fox Marx vs Eddy | 4–2 | 66.67% |
| Fox Marx vs Yoshimitsu | 0–4 | 0.00% |
| Fox Marx vs Jack-8 | 0–4 | 0.00% |
| Fox Marx vs Lili | 3–1 | 75.00% |
| Fox Marx vs Leo | 0–4 | 0.00% |
| Fox Marx vs Panda | 4–0 | 100.00% |
| Fox Marx vs Leroy | 3–1 | 75.00% |
| Fox Marx vs Azucena | 1–3 | 25.00% |
| Fox Marx vs Anna | 2–2 | 50.00% |
| Fox Marx vs Lee | 1–2 | 33.33% |
| Fox Marx vs Heihachi | 1–2 | 33.33% |
| Fox Marx vs Nina | 2–0 | 100.00% |
| Fox Marx vs Clive | 0–2 | 0.00% |
| Fox Marx vs Feng | 0–1 | 0.00% |
| Fox Marx vs Raven | 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.