| RoronoaStepa vs King | 8–6 | 57.14% |
| RoronoaStepa vs Kazuya | 0–12 | 0.00% |
| RoronoaStepa vs Lili | 5–6 | 45.45% |
| RoronoaStepa vs Clive | 6–4 | 60.00% |
| RoronoaStepa vs Hwoarang | 7–2 | 77.78% |
| RoronoaStepa vs Devil Jin | 6–2 | 75.00% |
| RoronoaStepa vs Dragunov | 4–4 | 50.00% |
| RoronoaStepa vs Victor | 5–3 | 62.50% |
| RoronoaStepa vs Kuma | 5–2 | 71.43% |
| RoronoaStepa vs Asuka | 4–2 | 66.67% |
| RoronoaStepa vs Law | 4–1 | 80.00% |
| RoronoaStepa vs Steve | 4–1 | 80.00% |
| RoronoaStepa vs Lars | 3–2 | 60.00% |
| RoronoaStepa vs Claudio | 3–2 | 60.00% |
| RoronoaStepa vs Lee | 3–2 | 60.00% |
| RoronoaStepa vs Eddy | 1–4 | 20.00% |
| RoronoaStepa vs Jin | 4–0 | 100.00% |
| RoronoaStepa vs Bryan | 2–2 | 50.00% |
| RoronoaStepa vs Leroy | 2–2 | 50.00% |
| RoronoaStepa vs Jun | 4–0 | 100.00% |
| RoronoaStepa vs Heihachi | 2–2 | 50.00% |
| RoronoaStepa vs Yoshimitsu | 2–1 | 66.67% |
| RoronoaStepa vs Feng | 1–2 | 33.33% |
| RoronoaStepa vs Leo | 3–0 | 100.00% |
| RoronoaStepa vs Nina | 3–0 | 100.00% |
| RoronoaStepa vs Azucena | 3–0 | 100.00% |
| RoronoaStepa vs Lidia | 2–1 | 66.67% |
| RoronoaStepa vs Xiaoyu | 0–2 | 0.00% |
| RoronoaStepa vs Alisa | 1–0 | 100.00% |
| RoronoaStepa vs Panda | 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.