| Rosa vs King | 8–13 | 38.10% |
| Rosa vs Steve | 7–11 | 38.89% |
| Rosa vs Xiaoyu | 9–7 | 56.25% |
| Rosa vs Jin | 3–11 | 21.43% |
| Rosa vs Hwoarang | 5–8 | 38.46% |
| Rosa vs Kazuya | 6–5 | 54.55% |
| Rosa vs Bryan | 2–8 | 20.00% |
| Rosa vs Reina | 2–7 | 22.22% |
| Rosa vs Azucena | 3–6 | 33.33% |
| Rosa vs Jun | 2–4 | 33.33% |
| Rosa vs Eddy | 2–4 | 33.33% |
| Rosa vs Leo | 1–4 | 20.00% |
| Rosa vs Claudio | 1–4 | 20.00% |
| Rosa vs Lars | 3–2 | 60.00% |
| Rosa vs Paul | 0–4 | 0.00% |
| Rosa vs Yoshimitsu | 2–2 | 50.00% |
| Rosa vs Feng | 0–4 | 0.00% |
| Rosa vs Lili | 3–1 | 75.00% |
| Rosa vs Lee | 1–2 | 33.33% |
| Rosa vs Law | 1–2 | 33.33% |
| Rosa vs Victor | 2–1 | 66.67% |
| Rosa vs Asuka | 0–2 | 0.00% |
| Rosa vs Devil Jin | 1–1 | 50.00% |
| Rosa vs Alisa | 0–2 | 0.00% |
| Rosa vs Nina | 2–0 | 100.00% |
| Rosa vs Shaheen | 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.