| Rosameltroso vs King | 24–35 | 40.68% |
| Rosameltroso vs Jin | 23–16 | 58.97% |
| Rosameltroso vs Anna | 14–22 | 38.89% |
| Rosameltroso vs Kazuya | 8–24 | 25.00% |
| Rosameltroso vs Law | 15–16 | 48.39% |
| Rosameltroso vs Nina | 14–17 | 45.16% |
| Rosameltroso vs Hwoarang | 12–16 | 42.86% |
| Rosameltroso vs Reina | 14–13 | 51.85% |
| Rosameltroso vs Heihachi | 9–18 | 33.33% |
| Rosameltroso vs Azucena | 14–10 | 58.33% |
| Rosameltroso vs Eddy | 8–16 | 33.33% |
| Rosameltroso vs Dragunov | 10–11 | 47.62% |
| Rosameltroso vs Yoshimitsu | 7–13 | 35.00% |
| Rosameltroso vs Bryan | 10–10 | 50.00% |
| Rosameltroso vs Victor | 9–11 | 45.00% |
| Rosameltroso vs Asuka | 10–9 | 52.63% |
| Rosameltroso vs Steve | 10–8 | 55.56% |
| Rosameltroso vs Devil Jin | 7–10 | 41.18% |
| Rosameltroso vs Lidia | 9–8 | 52.94% |
| Rosameltroso vs Armor King | 8–7 | 53.33% |
| Rosameltroso vs Raven | 8–6 | 57.14% |
| Rosameltroso vs Xiaoyu | 3–9 | 25.00% |
| Rosameltroso vs Lili | 6–6 | 50.00% |
| Rosameltroso vs Leo | 4–7 | 36.36% |
| Rosameltroso vs Lars | 7–4 | 63.64% |
| Rosameltroso vs Alisa | 3–6 | 33.33% |
| Rosameltroso vs Leroy | 4–5 | 44.44% |
| Rosameltroso vs Clive | 6–3 | 66.67% |
| Rosameltroso vs Fahkumram | 3–6 | 33.33% |
| Rosameltroso vs Paul | 4–4 | 50.00% |
| Rosameltroso vs Lee | 4–4 | 50.00% |
| Rosameltroso vs Jun | 2–4 | 33.33% |
| Rosameltroso vs Jack-8 | 2–3 | 40.00% |
| Rosameltroso vs Shaheen | 2–2 | 50.00% |
| Rosameltroso vs Feng | 2–1 | 66.67% |
| Rosameltroso vs Claudio | 2–1 | 66.67% |
| Rosameltroso vs Kuma | 2–1 | 66.67% |
| Rosameltroso vs Zafina | 2–1 | 66.67% |
| Rosameltroso vs Miary Zo | 1–2 | 33.33% |
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.