| Mario vs Heihachi | 10–22 | 31.25% |
| Mario vs King | 12–19 | 38.71% |
| Mario vs Jin | 16–15 | 51.61% |
| Mario vs Reina | 12–11 | 52.17% |
| Mario vs Law | 12–6 | 66.67% |
| Mario vs Bryan | 6–12 | 33.33% |
| Mario vs Kazuya | 5–11 | 31.25% |
| Mario vs Steve | 8–7 | 53.33% |
| Mario vs Yoshimitsu | 7–7 | 50.00% |
| Mario vs Lili | 5–9 | 35.71% |
| Mario vs Devil Jin | 4–8 | 33.33% |
| Mario vs Jun | 2–10 | 16.67% |
| Mario vs Paul | 6–4 | 60.00% |
| Mario vs Zafina | 4–5 | 44.44% |
| Mario vs Nina | 2–6 | 25.00% |
| Mario vs Lidia | 3–4 | 42.86% |
| Mario vs Hwoarang | 0–6 | 0.00% |
| Mario vs Asuka | 1–5 | 16.67% |
| Mario vs Alisa | 5–1 | 83.33% |
| Mario vs Claudio | 1–5 | 16.67% |
| Mario vs Eddy | 1–5 | 16.67% |
| Mario vs Xiaoyu | 1–4 | 20.00% |
| Mario vs Feng | 2–3 | 40.00% |
| Mario vs Dragunov | 1–3 | 25.00% |
| Mario vs Lars | 4–0 | 100.00% |
| Mario vs Shaheen | 1–3 | 25.00% |
| Mario vs Leroy | 2–2 | 50.00% |
| Mario vs Azucena | 3–1 | 75.00% |
| Mario vs Raven | 2–2 | 50.00% |
| Mario vs Leo | 2–1 | 66.67% |
| Mario vs Kuma | 0–3 | 0.00% |
| Mario vs Panda | 1–2 | 33.33% |
| Mario vs Victor | 1–2 | 33.33% |
| Mario vs Jack-8 | 0–1 | 0.00% |
| Mario vs Lee | 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.