| Rosas vs Reina | 30–29 | 50.85% |
| Rosas vs Jin | 32–24 | 57.14% |
| Rosas vs Steve | 22–21 | 51.16% |
| Rosas vs Kazuya | 27–14 | 65.85% |
| Rosas vs Dragunov | 28–8 | 77.78% |
| Rosas vs Bryan | 21–12 | 63.64% |
| Rosas vs King | 14–16 | 46.67% |
| Rosas vs Paul | 13–12 | 52.00% |
| Rosas vs Law | 13–10 | 56.52% |
| Rosas vs Hwoarang | 14–9 | 60.87% |
| Rosas vs Alisa | 11–9 | 55.00% |
| Rosas vs Yoshimitsu | 14–4 | 77.78% |
| Rosas vs Heihachi | 9–6 | 60.00% |
| Rosas vs Clive | 6–8 | 42.86% |
| Rosas vs Jun | 4–9 | 30.77% |
| Rosas vs Victor | 6–6 | 50.00% |
| Rosas vs Asuka | 4–7 | 36.36% |
| Rosas vs Devil Jin | 7–4 | 63.64% |
| Rosas vs Lili | 7–4 | 63.64% |
| Rosas vs Lidia | 3–8 | 27.27% |
| Rosas vs Leroy | 6–2 | 75.00% |
| Rosas vs Lars | 2–5 | 28.57% |
| Rosas vs Kuma | 3–4 | 42.86% |
| Rosas vs Azucena | 4–3 | 57.14% |
| Rosas vs Xiaoyu | 4–2 | 66.67% |
| Rosas vs Armor King | 2–4 | 33.33% |
| Rosas vs Lee | 2–3 | 40.00% |
| Rosas vs Feng | 2–2 | 50.00% |
| Rosas vs Leo | 2–2 | 50.00% |
| Rosas vs Shaheen | 2–2 | 50.00% |
| Rosas vs Panda | 2–2 | 50.00% |
| Rosas vs Zafina | 2–2 | 50.00% |
| Rosas vs Raven | 2–2 | 50.00% |
| Rosas vs Eddy | 2–2 | 50.00% |
| Rosas vs Fahkumram | 0–4 | 0.00% |
| Rosas vs Jack-8 | 1–2 | 33.33% |
| Rosas vs Claudio | 0–3 | 0.00% |
| Rosas vs Nina | 0–3 | 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.