| Romulis vs Kazuya | 177–206 | 46.21% |
| Romulis vs Bryan | 154–185 | 45.43% |
| Romulis vs Reina | 141–195 | 41.96% |
| Romulis vs Jin | 159–173 | 47.89% |
| Romulis vs King | 176–141 | 55.52% |
| Romulis vs Steve | 143–128 | 52.77% |
| Romulis vs Hwoarang | 115–139 | 45.28% |
| Romulis vs Law | 102–108 | 48.57% |
| Romulis vs Dragunov | 112–76 | 59.57% |
| Romulis vs Yoshimitsu | 96–88 | 52.17% |
| Romulis vs Paul | 89–88 | 50.28% |
| Romulis vs Lili | 81–87 | 48.21% |
| Romulis vs Lee | 88–74 | 54.32% |
| Romulis vs Armor King | 76–85 | 47.20% |
| Romulis vs Lars | 82–75 | 52.23% |
| Romulis vs Azucena | 78–79 | 49.68% |
| Romulis vs Asuka | 88–59 | 59.86% |
| Romulis vs Jun | 75–66 | 53.19% |
| Romulis vs Nina | 62–73 | 45.93% |
| Romulis vs Victor | 72–55 | 56.69% |
| Romulis vs Xiaoyu | 60–63 | 48.78% |
| Romulis vs Alisa | 59–62 | 48.76% |
| Romulis vs Heihachi | 54–62 | 46.55% |
| Romulis vs Raven | 54–60 | 47.37% |
| Romulis vs Devil Jin | 48–58 | 45.28% |
| Romulis vs Eddy | 55–38 | 59.14% |
| Romulis vs Feng | 39–43 | 47.56% |
| Romulis vs Lidia | 37–45 | 45.12% |
| Romulis vs Leo | 33–47 | 41.25% |
| Romulis vs Kuma | 40–39 | 50.63% |
| Romulis vs Jack-8 | 35–42 | 45.45% |
| Romulis vs Miary Zo | 29–35 | 45.31% |
| Romulis vs Shaheen | 27–32 | 45.76% |
| Romulis vs Claudio | 23–34 | 40.35% |
| Romulis vs Fahkumram | 28–23 | 54.90% |
| Romulis vs Clive | 24–26 | 48.00% |
| Romulis vs Zafina | 28–20 | 58.33% |
| Romulis vs Leroy | 23–23 | 50.00% |
| Romulis vs Panda | 14–10 | 58.33% |
| Romulis vs Anna | 5–0 | 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.