| Romen vs King | 23–30 | 43.40% |
| Romen vs Eddy | 32–19 | 62.75% |
| Romen vs Hwoarang | 27–16 | 62.79% |
| Romen vs Reina | 28–14 | 66.67% |
| Romen vs Jin | 21–19 | 52.50% |
| Romen vs Kazuya | 20–19 | 51.28% |
| Romen vs Law | 8–21 | 27.59% |
| Romen vs Yoshimitsu | 15–13 | 53.57% |
| Romen vs Lili | 15–12 | 55.56% |
| Romen vs Steve | 13–13 | 50.00% |
| Romen vs Jun | 8–15 | 34.78% |
| Romen vs Heihachi | 12–10 | 54.55% |
| Romen vs Paul | 4–17 | 19.05% |
| Romen vs Victor | 10–7 | 58.82% |
| Romen vs Leo | 7–8 | 46.67% |
| Romen vs Lars | 8–7 | 53.33% |
| Romen vs Jack-8 | 7–7 | 50.00% |
| Romen vs Dragunov | 10–4 | 71.43% |
| Romen vs Azucena | 6–7 | 46.15% |
| Romen vs Nina | 5–7 | 41.67% |
| Romen vs Bryan | 7–4 | 63.64% |
| Romen vs Kuma | 7–4 | 63.64% |
| Romen vs Xiaoyu | 3–7 | 30.00% |
| Romen vs Feng | 3–7 | 30.00% |
| Romen vs Lee | 7–2 | 77.78% |
| Romen vs Lidia | 6–3 | 66.67% |
| Romen vs Asuka | 4–4 | 50.00% |
| Romen vs Devil Jin | 0–8 | 0.00% |
| Romen vs Alisa | 5–3 | 62.50% |
| Romen vs Zafina | 3–2 | 60.00% |
| Romen vs Claudio | 3–1 | 75.00% |
| Romen vs Shaheen | 2–2 | 50.00% |
| Romen vs Raven | 2–2 | 50.00% |
| Romen vs Panda | 2–0 | 100.00% |
| Romen vs Anna | 0–2 | 0.00% |
| Romen vs Fahkumram | 0–2 | 0.00% |
| Romen vs Leroy | 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.