| Mafaias vs Jin | 20–14 | 58.82% |
| Mafaias vs Law | 11–14 | 44.00% |
| Mafaias vs Reina | 11–8 | 57.89% |
| Mafaias vs Bryan | 12–6 | 66.67% |
| Mafaias vs Kazuya | 13–3 | 81.25% |
| Mafaias vs Nina | 7–9 | 43.75% |
| Mafaias vs Hwoarang | 6–9 | 40.00% |
| Mafaias vs Eddy | 6–9 | 40.00% |
| Mafaias vs Steve | 11–3 | 78.57% |
| Mafaias vs Paul | 5–8 | 38.46% |
| Mafaias vs King | 5–8 | 38.46% |
| Mafaias vs Lee | 8–4 | 66.67% |
| Mafaias vs Devil Jin | 8–3 | 72.73% |
| Mafaias vs Alisa | 6–5 | 54.55% |
| Mafaias vs Victor | 8–3 | 72.73% |
| Mafaias vs Dragunov | 9–0 | 100.00% |
| Mafaias vs Claudio | 4–4 | 50.00% |
| Mafaias vs Azucena | 5–3 | 62.50% |
| Mafaias vs Xiaoyu | 4–3 | 57.14% |
| Mafaias vs Lars | 5–2 | 71.43% |
| Mafaias vs Jun | 6–1 | 85.71% |
| Mafaias vs Yoshimitsu | 2–4 | 33.33% |
| Mafaias vs Lili | 1–5 | 16.67% |
| Mafaias vs Asuka | 2–2 | 50.00% |
| Mafaias vs Jack-8 | 2–1 | 66.67% |
| Mafaias vs Leroy | 2–1 | 66.67% |
| Mafaias vs Raven | 1–1 | 50.00% |
| Mafaias vs Feng | 1–0 | 100.00% |
| Mafaias vs Leo | 1–0 | 100.00% |
| Mafaias vs Shaheen | 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.