| Romello vs Jin | 17–12 | 58.62% |
| Romello vs King | 11–17 | 39.29% |
| Romello vs Law | 9–17 | 34.62% |
| Romello vs Steve | 15–11 | 57.69% |
| Romello vs Reina | 15–10 | 60.00% |
| Romello vs Lili | 9–12 | 42.86% |
| Romello vs Kazuya | 7–12 | 36.84% |
| Romello vs Bryan | 8–10 | 44.44% |
| Romello vs Heihachi | 9–8 | 52.94% |
| Romello vs Clive | 3–14 | 17.65% |
| Romello vs Hwoarang | 7–9 | 43.75% |
| Romello vs Dragunov | 6–10 | 37.50% |
| Romello vs Asuka | 3–9 | 25.00% |
| Romello vs Jun | 5–7 | 41.67% |
| Romello vs Xiaoyu | 6–4 | 60.00% |
| Romello vs Yoshimitsu | 6–3 | 66.67% |
| Romello vs Lidia | 7–2 | 77.78% |
| Romello vs Feng | 4–4 | 50.00% |
| Romello vs Eddy | 1–7 | 12.50% |
| Romello vs Fahkumram | 3–5 | 37.50% |
| Romello vs Jack-8 | 4–3 | 57.14% |
| Romello vs Devil Jin | 2–5 | 28.57% |
| Romello vs Lars | 4–3 | 57.14% |
| Romello vs Armor King | 5–2 | 71.43% |
| Romello vs Claudio | 4–2 | 66.67% |
| Romello vs Nina | 2–4 | 33.33% |
| Romello vs Azucena | 2–4 | 33.33% |
| Romello vs Raven | 4–2 | 66.67% |
| Romello vs Paul | 3–2 | 60.00% |
| Romello vs Lee | 1–4 | 20.00% |
| Romello vs Victor | 3–2 | 60.00% |
| Romello vs Anna | 0–5 | 0.00% |
| Romello vs Alisa | 3–1 | 75.00% |
| Romello vs Leroy | 0–4 | 0.00% |
| Romello vs Leo | 1–2 | 33.33% |
| Romello vs Panda | 2–1 | 66.67% |
| Romello vs Kuma | 2–0 | 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.