| Romananas vs Kazuya | 19–27 | 41.30% |
| Romananas vs Heihachi | 27–19 | 58.70% |
| Romananas vs Jin | 24–16 | 60.00% |
| Romananas vs Reina | 21–19 | 52.50% |
| Romananas vs King | 14–21 | 40.00% |
| Romananas vs Steve | 15–15 | 50.00% |
| Romananas vs Devil Jin | 14–15 | 48.28% |
| Romananas vs Law | 14–14 | 50.00% |
| Romananas vs Azucena | 13–14 | 48.15% |
| Romananas vs Hwoarang | 17–6 | 73.91% |
| Romananas vs Dragunov | 14–8 | 63.64% |
| Romananas vs Yoshimitsu | 9–12 | 42.86% |
| Romananas vs Bryan | 12–9 | 57.14% |
| Romananas vs Jun | 10–11 | 47.62% |
| Romananas vs Lidia | 13–6 | 68.42% |
| Romananas vs Paul | 9–8–1 | 52.94% |
| Romananas vs Eddy | 11–7 | 61.11% |
| Romananas vs Lili | 12–5 | 70.59% |
| Romananas vs Nina | 8–9 | 47.06% |
| Romananas vs Leo | 8–6 | 57.14% |
| Romananas vs Alisa | 4–9 | 30.77% |
| Romananas vs Leroy | 5–8 | 38.46% |
| Romananas vs Victor | 2–10 | 16.67% |
| Romananas vs Xiaoyu | 4–7 | 36.36% |
| Romananas vs Asuka | 1–9 | 10.00% |
| Romananas vs Lee | 7–3 | 70.00% |
| Romananas vs Shaheen | 4–5 | 44.44% |
| Romananas vs Feng | 5–2 | 71.43% |
| Romananas vs Kuma | 3–4 | 42.86% |
| Romananas vs Jack-8 | 3–3 | 50.00% |
| Romananas vs Panda | 2–2 | 50.00% |
| Romananas vs Lars | 1–2 | 33.33% |
| Romananas vs Claudio | 2–1 | 66.67% |
| Romananas vs Zafina | 3–0 | 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.