| Romain66 vs King | 28–31 | 47.46% |
| Romain66 vs Jin | 32–25 | 56.14% |
| Romain66 vs Hwoarang | 16–30 | 34.78% |
| Romain66 vs Kazuya | 17–14 | 54.84% |
| Romain66 vs Bryan | 13–14 | 48.15% |
| Romain66 vs Steve | 12–13 | 48.00% |
| Romain66 vs Law | 9–15 | 37.50% |
| Romain66 vs Heihachi | 7–14 | 33.33% |
| Romain66 vs Jun | 13–5 | 72.22% |
| Romain66 vs Fahkumram | 6–12 | 33.33% |
| Romain66 vs Alisa | 8–9 | 47.06% |
| Romain66 vs Claudio | 3–14 | 17.65% |
| Romain66 vs Lili | 5–10 | 33.33% |
| Romain66 vs Dragunov | 5–10 | 33.33% |
| Romain66 vs Clive | 6–9 | 40.00% |
| Romain66 vs Eddy | 3–11 | 21.43% |
| Romain66 vs Reina | 9–4 | 69.23% |
| Romain66 vs Nina | 2–10 | 16.67% |
| Romain66 vs Azucena | 7–4 | 63.64% |
| Romain66 vs Victor | 7–4 | 63.64% |
| Romain66 vs Yoshimitsu | 3–7 | 30.00% |
| Romain66 vs Asuka | 4–6 | 40.00% |
| Romain66 vs Feng | 1–8 | 11.11% |
| Romain66 vs Anna | 3–6 | 33.33% |
| Romain66 vs Xiaoyu | 5–3 | 62.50% |
| Romain66 vs Jack-8 | 3–5 | 37.50% |
| Romain66 vs Devil Jin | 4–4 | 50.00% |
| Romain66 vs Lee | 6–2 | 75.00% |
| Romain66 vs Panda | 6–2 | 75.00% |
| Romain66 vs Lars | 2–5 | 28.57% |
| Romain66 vs Paul | 5–0 | 100.00% |
| Romain66 vs Raven | 3–2 | 60.00% |
| Romain66 vs Lidia | 0–3 | 0.00% |
| Romain66 vs Kuma | 1–1 | 50.00% |
| Romain66 vs Zafina | 2–0 | 100.00% |
| Romain66 vs Leo | 0–1 | 0.00% |
| Romain66 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.