| Romby vs Hwoarang | 14–10 | 58.33% |
| Romby vs Jin | 8–12 | 40.00% |
| Romby vs King | 7–7 | 50.00% |
| Romby vs Bryan | 3–7 | 30.00% |
| Romby vs Clive | 6–4 | 60.00% |
| Romby vs Dragunov | 7–2 | 77.78% |
| Romby vs Eddy | 3–6 | 33.33% |
| Romby vs Steve | 3–5 | 37.50% |
| Romby vs Victor | 4–4 | 50.00% |
| Romby vs Armor King | 4–4 | 50.00% |
| Romby vs Law | 3–4 | 42.86% |
| Romby vs Yoshimitsu | 2–5 | 28.57% |
| Romby vs Azucena | 5–2 | 71.43% |
| Romby vs Lili | 6–0 | 100.00% |
| Romby vs Nina | 3–3 | 50.00% |
| Romby vs Lidia | 5–1 | 83.33% |
| Romby vs Kazuya | 1–4 | 20.00% |
| Romby vs Jack-8 | 1–4 | 20.00% |
| Romby vs Lee | 3–2 | 60.00% |
| Romby vs Reina | 0–4 | 0.00% |
| Romby vs Fahkumram | 2–2 | 50.00% |
| Romby vs Xiaoyu | 3–0 | 100.00% |
| Romby vs Devil Jin | 1–2 | 33.33% |
| Romby vs Feng | 3–0 | 100.00% |
| Romby vs Lars | 1–2 | 33.33% |
| Romby vs Jun | 3–0 | 100.00% |
| Romby vs Heihachi | 2–1 | 66.67% |
| Romby vs Paul | 0–2 | 0.00% |
| Romby vs Leo | 2–0 | 100.00% |
| Romby vs Kuma | 0–2 | 0.00% |
| Romby vs Miary Zo | 2–0 | 100.00% |
| Romby vs Asuka | 0–1 | 0.00% |
| Romby vs Alisa | 0–1 | 0.00% |
| Romby vs Leroy | 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.