| Roronoa vs Kazuya | 121–136 | 47.08% |
| Roronoa vs Jin | 122–120 | 50.41% |
| Roronoa vs King | 89–125 | 41.59% |
| Roronoa vs Dragunov | 70–70 | 50.00% |
| Roronoa vs Bryan | 48–72 | 40.00% |
| Roronoa vs Steve | 53–54 | 49.53% |
| Roronoa vs Yoshimitsu | 51–49 | 51.00% |
| Roronoa vs Reina | 39–60 | 39.39% |
| Roronoa vs Hwoarang | 39–49 | 44.32% |
| Roronoa vs Law | 41–39 | 51.25% |
| Roronoa vs Devil Jin | 32–47 | 40.51% |
| Roronoa vs Eddy | 32–36 | 47.06% |
| Roronoa vs Lee | 26–39 | 40.00% |
| Roronoa vs Lili | 31–32 | 49.21% |
| Roronoa vs Nina | 30–30 | 50.00% |
| Roronoa vs Asuka | 33–25 | 56.90% |
| Roronoa vs Paul | 26–30 | 46.43% |
| Roronoa vs Feng | 17–32 | 34.69% |
| Roronoa vs Azucena | 24–25 | 48.98% |
| Roronoa vs Leo | 20–26 | 43.48% |
| Roronoa vs Jun | 22–21 | 51.16% |
| Roronoa vs Victor | 18–24 | 42.86% |
| Roronoa vs Alisa | 17–15 | 53.12% |
| Roronoa vs Claudio | 13–19 | 40.62% |
| Roronoa vs Lars | 9–22 | 29.03% |
| Roronoa vs Jack-8 | 12–15 | 44.44% |
| Roronoa vs Shaheen | 15–12 | 55.56% |
| Roronoa vs Zafina | 9–9 | 50.00% |
| Roronoa vs Leroy | 5–13 | 27.78% |
| Roronoa vs Heihachi | 3–15 | 16.67% |
| Roronoa vs Xiaoyu | 7–7 | 50.00% |
| Roronoa vs Clive | 8–5 | 61.54% |
| Roronoa vs Raven | 7–5 | 58.33% |
| Roronoa vs Kuma | 3–7 | 30.00% |
| Roronoa vs Panda | 1–3 | 25.00% |
| Roronoa vs Lidia | 0–2 | 0.00% |
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.