| Mattia vs King | 5–16 | 23.81% |
| Mattia vs Law | 5–13 | 27.78% |
| Mattia vs Kazuya | 4–12 | 25.00% |
| Mattia vs Jin | 2–13 | 13.33% |
| Mattia vs Reina | 6–9 | 40.00% |
| Mattia vs Paul | 1–13 | 7.14% |
| Mattia vs Hwoarang | 3–11 | 21.43% |
| Mattia vs Nina | 2–12 | 14.29% |
| Mattia vs Lars | 3–8 | 27.27% |
| Mattia vs Steve | 4–6 | 40.00% |
| Mattia vs Lili | 3–7 | 30.00% |
| Mattia vs Victor | 2–8 | 20.00% |
| Mattia vs Asuka | 0–9 | 0.00% |
| Mattia vs Lidia | 2–7 | 22.22% |
| Mattia vs Yoshimitsu | 1–7 | 12.50% |
| Mattia vs Bryan | 1–7 | 12.50% |
| Mattia vs Heihachi | 2–5 | 28.57% |
| Mattia vs Devil Jin | 3–3 | 50.00% |
| Mattia vs Claudio | 1–5 | 16.67% |
| Mattia vs Lee | 1–5 | 16.67% |
| Mattia vs Azucena | 1–5 | 16.67% |
| Mattia vs Eddy | 0–6 | 0.00% |
| Mattia vs Dragunov | 2–3 | 40.00% |
| Mattia vs Zafina | 2–3 | 40.00% |
| Mattia vs Alisa | 0–4 | 0.00% |
| Mattia vs Shaheen | 0–4 | 0.00% |
| Mattia vs Clive | 0–4 | 0.00% |
| Mattia vs Xiaoyu | 3–0 | 100.00% |
| Mattia vs Kuma | 0–3 | 0.00% |
| Mattia vs Leo | 0–2 | 0.00% |
| Mattia vs Jun | 0–2 | 0.00% |
| Mattia vs Raven | 2–0 | 100.00% |
| Mattia vs Leroy | 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.