| Roselia vs Reina | 10–17 | 37.04% |
| Roselia vs Kazuya | 6–10 | 37.50% |
| Roselia vs Victor | 3–9 | 25.00% |
| Roselia vs Clive | 1–11 | 8.33% |
| Roselia vs Hwoarang | 3–7 | 30.00% |
| Roselia vs King | 2–7 | 22.22% |
| Roselia vs Dragunov | 3–6 | 33.33% |
| Roselia vs Nina | 1–8 | 11.11% |
| Roselia vs Heihachi | 3–6 | 33.33% |
| Roselia vs Bryan | 4–4 | 50.00% |
| Roselia vs Lee | 2–4 | 33.33% |
| Roselia vs Paul | 1–4 | 20.00% |
| Roselia vs Law | 5–0 | 100.00% |
| Roselia vs Jin | 0–5 | 0.00% |
| Roselia vs Lili | 2–3 | 40.00% |
| Roselia vs Alisa | 2–3 | 40.00% |
| Roselia vs Eddy | 2–3 | 40.00% |
| Roselia vs Xiaoyu | 0–3 | 0.00% |
| Roselia vs Feng | 1–2 | 33.33% |
| Roselia vs Claudio | 0–3 | 0.00% |
| Roselia vs Jun | 2–1 | 66.67% |
| Roselia vs Lidia | 0–3 | 0.00% |
| Roselia vs Yoshimitsu | 0–2 | 0.00% |
| Roselia vs Lars | 0–2 | 0.00% |
| Roselia vs Steve | 0–1 | 0.00% |
| Roselia vs Jack-8 | 0–1 | 0.00% |
| Roselia vs Devil Jin | 0–1 | 0.00% |
| Roselia vs Zafina | 0–1 | 0.00% |
| Roselia vs Raven | 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.