| Rosa vs Kazuya | 11–9 | 55.00% |
| Rosa vs Hwoarang | 9–9 | 50.00% |
| Rosa vs Law | 9–6 | 60.00% |
| Rosa vs King | 11–1 | 91.67% |
| Rosa vs Lili | 4–7 | 36.36% |
| Rosa vs Yoshimitsu | 4–6 | 40.00% |
| Rosa vs Jin | 3–5 | 37.50% |
| Rosa vs Reina | 6–2 | 75.00% |
| Rosa vs Azucena | 3–5 | 37.50% |
| Rosa vs Xiaoyu | 5–2 | 71.43% |
| Rosa vs Devil Jin | 4–3 | 57.14% |
| Rosa vs Dragunov | 7–0 | 100.00% |
| Rosa vs Steve | 1–5 | 16.67% |
| Rosa vs Eddy | 4–2 | 66.67% |
| Rosa vs Clive | 4–2 | 66.67% |
| Rosa vs Fahkumram | 4–2 | 66.67% |
| Rosa vs Jack-8 | 2–3 | 40.00% |
| Rosa vs Leo | 3–2 | 60.00% |
| Rosa vs Asuka | 1–3 | 25.00% |
| Rosa vs Alisa | 2–2 | 50.00% |
| Rosa vs Nina | 1–3 | 25.00% |
| Rosa vs Heihachi | 3–1 | 75.00% |
| Rosa vs Paul | 3–0 | 100.00% |
| Rosa vs Bryan | 1–2 | 33.33% |
| Rosa vs Lee | 2–1 | 66.67% |
| Rosa vs Victor | 2–1 | 66.67% |
| Rosa vs Lidia | 1–2 | 33.33% |
| Rosa vs Panda | 0–2 | 0.00% |
| Rosa vs Jun | 2–0 | 100.00% |
| Rosa vs Raven | 2–0 | 100.00% |
| Rosa vs Feng | 0–1 | 0.00% |
| Rosa vs Shaheen | 1–0 | 100.00% |
| Rosa vs Leroy | 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.