| Ro_M vs Eddy | 9–12 | 42.86% |
| Ro_M vs Kazuya | 10–4 | 71.43% |
| Ro_M vs Hwoarang | 6–7 | 46.15% |
| Ro_M vs Victor | 9–3 | 75.00% |
| Ro_M vs Lars | 7–2 | 77.78% |
| Ro_M vs King | 4–4 | 50.00% |
| Ro_M vs Steve | 4–3 | 57.14% |
| Ro_M vs Dragunov | 3–4 | 42.86% |
| Ro_M vs Reina | 6–1 | 85.71% |
| Ro_M vs Paul | 5–1 | 83.33% |
| Ro_M vs Jin | 2–4 | 33.33% |
| Ro_M vs Jun | 3–3 | 50.00% |
| Ro_M vs Yoshimitsu | 2–3 | 40.00% |
| Ro_M vs Law | 0–4 | 0.00% |
| Ro_M vs Asuka | 4–0 | 100.00% |
| Ro_M vs Feng | 4–0 | 100.00% |
| Ro_M vs Nina | 2–2 | 50.00% |
| Ro_M vs Bryan | 1–2 | 33.33% |
| Ro_M vs Lili | 2–1 | 66.67% |
| Ro_M vs Xiaoyu | 2–0 | 100.00% |
| Ro_M vs Jack-8 | 0–2 | 0.00% |
| Ro_M vs Devil Jin | 0–2 | 0.00% |
| Ro_M vs Alisa | 2–0 | 100.00% |
| Ro_M vs Lee | 2–0 | 100.00% |
| Ro_M vs Kuma | 0–2 | 0.00% |
| Ro_M vs Leroy | 2–0 | 100.00% |
| Ro_M vs Azucena | 0–2 | 0.00% |
| Ro_M vs Leo | 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.