| Roman vs Lars | 9–10 | 47.37% |
| Roman vs King | 14–3 | 82.35% |
| Roman vs Law | 13–3 | 81.25% |
| Roman vs Jin | 11–2 | 84.62% |
| Roman vs Dragunov | 8–5 | 61.54% |
| Roman vs Azucena | 10–2 | 83.33% |
| Roman vs Heihachi | 6–6 | 50.00% |
| Roman vs Yoshimitsu | 6–2 | 75.00% |
| Roman vs Paul | 6–1 | 85.71% |
| Roman vs Steve | 5–2 | 71.43% |
| Roman vs Jack-8 | 5–2 | 71.43% |
| Roman vs Armor King | 6–1 | 85.71% |
| Roman vs Hwoarang | 6–0 | 100.00% |
| Roman vs Lili | 5–1 | 83.33% |
| Roman vs Claudio | 3–3 | 50.00% |
| Roman vs Lee | 4–2 | 66.67% |
| Roman vs Miary Zo | 4–2 | 66.67% |
| Roman vs Bryan | 5–0 | 100.00% |
| Roman vs Leo | 4–1 | 80.00% |
| Roman vs Nina | 4–1 | 80.00% |
| Roman vs Clive | 4–1 | 80.00% |
| Roman vs Jun | 3–1 | 75.00% |
| Roman vs Raven | 2–2 | 50.00% |
| Roman vs Kazuya | 2–1 | 66.67% |
| Roman vs Feng | 3–0 | 100.00% |
| Roman vs Shaheen | 1–2 | 33.33% |
| Roman vs Leroy | 3–0 | 100.00% |
| Roman vs Reina | 2–1 | 66.67% |
| Roman vs Xiaoyu | 2–0 | 100.00% |
| Roman vs Asuka | 2–0 | 100.00% |
| Roman vs Zafina | 2–0 | 100.00% |
| Roman vs Eddy | 2–0 | 100.00% |
| Roman vs Alisa | 1–0 | 100.00% |
| Roman vs Anna | 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.