| Rossi vs Eddy | 11–21 | 34.38% |
| Rossi vs King | 11–9 | 55.00% |
| Rossi vs Kazuya | 7–8 | 46.67% |
| Rossi vs Reina | 7–8 | 46.67% |
| Rossi vs Dragunov | 9–2 | 81.82% |
| Rossi vs Jun | 9–2 | 81.82% |
| Rossi vs Hwoarang | 5–4 | 55.56% |
| Rossi vs Nina | 7–2 | 77.78% |
| Rossi vs Law | 5–3 | 62.50% |
| Rossi vs Jin | 5–2 | 71.43% |
| Rossi vs Steve | 6–0 | 100.00% |
| Rossi vs Victor | 2–4 | 33.33% |
| Rossi vs Xiaoyu | 3–2 | 60.00% |
| Rossi vs Alisa | 3–2 | 60.00% |
| Rossi vs Raven | 2–3 | 40.00% |
| Rossi vs Yoshimitsu | 2–2 | 50.00% |
| Rossi vs Bryan | 4–0 | 100.00% |
| Rossi vs Feng | 3–1 | 75.00% |
| Rossi vs Devil Jin | 1–2 | 33.33% |
| Rossi vs Lili | 2–1 | 66.67% |
| Rossi vs Lars | 2–1 | 66.67% |
| Rossi vs Azucena | 2–1 | 66.67% |
| Rossi vs Claudio | 0–2 | 0.00% |
| Rossi vs Jack-8 | 1–0 | 100.00% |
| Rossi vs Asuka | 1–0 | 100.00% |
| Rossi vs Leo | 1–0 | 100.00% |
| Rossi vs Kuma | 1–0 | 100.00% |
| Rossi 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.