| Mar Mar vs Eddy | 6–11 | 35.29% |
| Mar Mar vs Jin | 9–3 | 75.00% |
| Mar Mar vs Hwoarang | 5–5 | 50.00% |
| Mar Mar vs King | 5–4 | 55.56% |
| Mar Mar vs Yoshimitsu | 3–6 | 33.33% |
| Mar Mar vs Kazuya | 3–3 | 50.00% |
| Mar Mar vs Reina | 4–2 | 66.67% |
| Mar Mar vs Asuka | 3–2 | 60.00% |
| Mar Mar vs Jun | 3–2 | 60.00% |
| Mar Mar vs Paul | 3–1 | 75.00% |
| Mar Mar vs Bryan | 2–2 | 50.00% |
| Mar Mar vs Leo | 2–2 | 50.00% |
| Mar Mar vs Law | 3–0 | 100.00% |
| Mar Mar vs Alisa | 2–1 | 66.67% |
| Mar Mar vs Victor | 3–0 | 100.00% |
| Mar Mar vs Steve | 2–0 | 100.00% |
| Mar Mar vs Nina | 2–0 | 100.00% |
| Mar Mar vs Lee | 0–2 | 0.00% |
| Mar Mar vs Kuma | 2–0 | 100.00% |
| Mar Mar vs Azucena | 0–2 | 0.00% |
| Mar Mar vs Raven | 0–2 | 0.00% |
| Mar Mar vs Devil Jin | 0–1 | 0.00% |
| Mar Mar vs Lili | 1–0 | 100.00% |
| Mar Mar vs Lars | 1–0 | 100.00% |
| Mar Mar vs Claudio | 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.