| Roman vs Jin | 20–36 | 35.71% |
| Roman vs Kazuya | 21–27 | 43.75% |
| Roman vs Law | 18–25 | 41.86% |
| Roman vs Hwoarang | 15–20 | 42.86% |
| Roman vs Jun | 8–21 | 27.59% |
| Roman vs Reina | 13–12 | 52.00% |
| Roman vs Bryan | 9–15 | 37.50% |
| Roman vs King | 10–12 | 45.45% |
| Roman vs Raven | 13–9 | 59.09% |
| Roman vs Eddy | 12–8 | 60.00% |
| Roman vs Steve | 5–14 | 26.32% |
| Roman vs Lili | 7–12 | 36.84% |
| Roman vs Nina | 9–10 | 47.37% |
| Roman vs Clive | 5–13 | 27.78% |
| Roman vs Heihachi | 5–12 | 29.41% |
| Roman vs Alisa | 7–9 | 43.75% |
| Roman vs Dragunov | 2–11 | 15.38% |
| Roman vs Kuma | 6–7 | 46.15% |
| Roman vs Paul | 6–6 | 50.00% |
| Roman vs Yoshimitsu | 4–8 | 33.33% |
| Roman vs Azucena | 8–4 | 66.67% |
| Roman vs Xiaoyu | 6–5 | 54.55% |
| Roman vs Devil Jin | 2–8 | 20.00% |
| Roman vs Lars | 4–3 | 57.14% |
| Roman vs Leroy | 2–4 | 33.33% |
| Roman vs Jack-8 | 1–4 | 20.00% |
| Roman vs Feng | 0–5 | 0.00% |
| Roman vs Victor | 2–3 | 40.00% |
| Roman vs Armor King | 3–2 | 60.00% |
| Roman vs Leo | 3–1 | 75.00% |
| Roman vs Lee | 1–3 | 25.00% |
| Roman vs Asuka | 3–0 | 100.00% |
| Roman vs Lidia | 0–3 | 0.00% |
| Roman vs Anna | 1–2 | 33.33% |
| Roman vs Claudio | 0–2 | 0.00% |
| Roman vs Panda | 2–0 | 100.00% |
| Roman vs Zafina | 0–2 | 0.00% |
| Roman vs Fahkumram | 0–2 | 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.