| RomJ vs Kazuya | 6–7 | 46.15% |
| RomJ vs Hwoarang | 7–5 | 58.33% |
| RomJ vs Reina | 6–6 | 50.00% |
| RomJ vs Lili | 6–4 | 60.00% |
| RomJ vs King | 1–6 | 14.29% |
| RomJ vs Bryan | 2–4 | 33.33% |
| RomJ vs Steve | 5–1 | 83.33% |
| RomJ vs Azucena | 3–3 | 50.00% |
| RomJ vs Paul | 2–3 | 40.00% |
| RomJ vs Dragunov | 2–3 | 40.00% |
| RomJ vs Jun | 2–3 | 40.00% |
| RomJ vs Jin | 2–2 | 50.00% |
| RomJ vs Xiaoyu | 2–1 | 66.67% |
| RomJ vs Devil Jin | 3–0 | 100.00% |
| RomJ vs Raven | 2–1 | 66.67% |
| RomJ vs Law | 2–0 | 100.00% |
| RomJ vs Leo | 2–0 | 100.00% |
| RomJ vs Shaheen | 2–0 | 100.00% |
| RomJ vs Lee | 0–2 | 0.00% |
| RomJ vs Lidia | 0–2 | 0.00% |
| RomJ vs Claudio | 0–1 | 0.00% |
| RomJ vs Kuma | 0–1 | 0.00% |
| RomJ 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.