| Prince Romello vs Heihachi | 13–3 | 81.25% |
| Prince Romello vs Jin | 9–4 | 69.23% |
| Prince Romello vs Kazuya | 6–6 | 50.00% |
| Prince Romello vs Yoshimitsu | 5–5 | 50.00% |
| Prince Romello vs Reina | 5–4 | 55.56% |
| Prince Romello vs Lars | 4–3 | 57.14% |
| Prince Romello vs Asuka | 2–4 | 33.33% |
| Prince Romello vs Jun | 3–3 | 50.00% |
| Prince Romello vs King | 3–2 | 60.00% |
| Prince Romello vs Bryan | 3–2 | 60.00% |
| Prince Romello vs Lee | 1–4 | 20.00% |
| Prince Romello vs Xiaoyu | 4–0 | 100.00% |
| Prince Romello vs Victor | 1–3 | 25.00% |
| Prince Romello vs Hwoarang | 2–1 | 66.67% |
| Prince Romello vs Steve | 1–2 | 33.33% |
| Prince Romello vs Lili | 2–1 | 66.67% |
| Prince Romello vs Leroy | 1–2 | 33.33% |
| Prince Romello vs Eddy | 3–0 | 100.00% |
| Prince Romello vs Jack-8 | 2–0 | 100.00% |
| Prince Romello vs Feng | 0–2 | 0.00% |
| Prince Romello vs Claudio | 2–0 | 100.00% |
| Prince Romello vs Nina | 0–2 | 0.00% |
| Prince Romello vs Zafina | 2–0 | 100.00% |
| Prince Romello vs Azucena | 1–1 | 50.00% |
| Prince Romello vs Raven | 2–0 | 100.00% |
| Prince Romello vs Law | 1–0 | 100.00% |
| Prince Romello vs Alisa | 0–1 | 0.00% |
| Prince Romello vs Lidia | 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.