| Rom3 vs King | 22–25 | 46.81% |
| Rom3 vs Jin | 13–13 | 50.00% |
| Rom3 vs Reina | 12–14 | 46.15% |
| Rom3 vs Hwoarang | 7–15 | 31.82% |
| Rom3 vs Steve | 9–12 | 42.86% |
| Rom3 vs Victor | 7–14 | 33.33% |
| Rom3 vs Law | 5–14 | 26.32% |
| Rom3 vs Leo | 10–9 | 52.63% |
| Rom3 vs Lars | 10–8 | 55.56% |
| Rom3 vs Jun | 7–11 | 38.89% |
| Rom3 vs Azucena | 4–14 | 22.22% |
| Rom3 vs Yoshimitsu | 10–6 | 62.50% |
| Rom3 vs Lili | 3–11 | 21.43% |
| Rom3 vs Paul | 9–4 | 69.23% |
| Rom3 vs Bryan | 4–9 | 30.77% |
| Rom3 vs Eddy | 3–10 | 23.08% |
| Rom3 vs Asuka | 2–10 | 16.67% |
| Rom3 vs Dragunov | 5–6 | 45.45% |
| Rom3 vs Xiaoyu | 3–7 | 30.00% |
| Rom3 vs Kazuya | 4–5 | 44.44% |
| Rom3 vs Nina | 4–5 | 44.44% |
| Rom3 vs Raven | 4–5 | 44.44% |
| Rom3 vs Zafina | 6–2 | 75.00% |
| Rom3 vs Shaheen | 4–3 | 57.14% |
| Rom3 vs Feng | 3–3 | 50.00% |
| Rom3 vs Alisa | 3–2 | 60.00% |
| Rom3 vs Lee | 2–3 | 40.00% |
| Rom3 vs Heihachi | 3–2 | 60.00% |
| Rom3 vs Clive | 2–3 | 40.00% |
| Rom3 vs Leroy | 2–2 | 50.00% |
| Rom3 vs Panda | 2–1 | 66.67% |
| Rom3 vs Devil Jin | 0–2 | 0.00% |
| Rom3 vs Lidia | 0–2 | 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.