| Mametinho vs Jin | 13–13 | 50.00% |
| Mametinho vs Steve | 14–12 | 53.85% |
| Mametinho vs Reina | 15–7 | 68.18% |
| Mametinho vs Azucena | 9–7 | 56.25% |
| Mametinho vs Law | 10–5 | 66.67% |
| Mametinho vs King | 6–9 | 40.00% |
| Mametinho vs Bryan | 6–7 | 46.15% |
| Mametinho vs Kazuya | 10–3 | 76.92% |
| Mametinho vs Dragunov | 9–4 | 69.23% |
| Mametinho vs Yoshimitsu | 4–5 | 44.44% |
| Mametinho vs Lars | 4–5 | 44.44% |
| Mametinho vs Victor | 6–3 | 66.67% |
| Mametinho vs Lidia | 5–4 | 55.56% |
| Mametinho vs Hwoarang | 4–4 | 50.00% |
| Mametinho vs Devil Jin | 4–4 | 50.00% |
| Mametinho vs Jack-8 | 6–1 | 85.71% |
| Mametinho vs Lili | 3–2 | 60.00% |
| Mametinho vs Leo | 1–4 | 20.00% |
| Mametinho vs Eddy | 3–2 | 60.00% |
| Mametinho vs Clive | 1–4 | 20.00% |
| Mametinho vs Alisa | 2–2 | 50.00% |
| Mametinho vs Claudio | 4–0 | 100.00% |
| Mametinho vs Lee | 2–2 | 50.00% |
| Mametinho vs Jun | 0–4 | 0.00% |
| Mametinho vs Anna | 4–0 | 100.00% |
| Mametinho vs Zafina | 2–1 | 66.67% |
| Mametinho vs Raven | 2–1 | 66.67% |
| Mametinho vs Heihachi | 1–2 | 33.33% |
| Mametinho vs Paul | 1–1 | 50.00% |
| Mametinho vs Xiaoyu | 2–0 | 100.00% |
| Mametinho vs Asuka | 2–0 | 100.00% |
| Mametinho vs Feng | 0–2 | 0.00% |
| Mametinho vs Shaheen | 2–0 | 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.