| Roc4 vs King | 53–37 | 58.89% |
| Roc4 vs Jin | 34–22 | 60.71% |
| Roc4 vs Kazuya | 21–21 | 50.00% |
| Roc4 vs Heihachi | 16–26 | 38.10% |
| Roc4 vs Steve | 25–15 | 62.50% |
| Roc4 vs Law | 16–19 | 45.71% |
| Roc4 vs Reina | 18–17 | 51.43% |
| Roc4 vs Yoshimitsu | 20–11 | 64.52% |
| Roc4 vs Bryan | 17–11 | 60.71% |
| Roc4 vs Victor | 13–15 | 46.43% |
| Roc4 vs Hwoarang | 16–10 | 61.54% |
| Roc4 vs Dragunov | 13–12 | 52.00% |
| Roc4 vs Azucena | 16–9 | 64.00% |
| Roc4 vs Jun | 12–12 | 50.00% |
| Roc4 vs Paul | 11–12 | 47.83% |
| Roc4 vs Eddy | 16–7 | 69.57% |
| Roc4 vs Leroy | 11–11 | 50.00% |
| Roc4 vs Lili | 9–11 | 45.00% |
| Roc4 vs Lidia | 12–7 | 63.16% |
| Roc4 vs Asuka | 12–6 | 66.67% |
| Roc4 vs Leo | 9–8 | 52.94% |
| Roc4 vs Lee | 13–4 | 76.47% |
| Roc4 vs Feng | 6–9 | 40.00% |
| Roc4 vs Alisa | 9–5 | 64.29% |
| Roc4 vs Clive | 5–9 | 35.71% |
| Roc4 vs Fahkumram | 8–6 | 57.14% |
| Roc4 vs Devil Jin | 5–7 | 41.67% |
| Roc4 vs Raven | 10–2 | 83.33% |
| Roc4 vs Lars | 8–3 | 72.73% |
| Roc4 vs Xiaoyu | 5–5 | 50.00% |
| Roc4 vs Nina | 8–0 | 100.00% |
| Roc4 vs Jack-8 | 4–3 | 57.14% |
| Roc4 vs Kuma | 2–5 | 28.57% |
| Roc4 vs Claudio | 3–3 | 50.00% |
| Roc4 vs Shaheen | 2–2 | 50.00% |
| Roc4 vs Anna | 1–3 | 25.00% |
| Roc4 vs Zafina | 1–2 | 33.33% |
| Roc4 vs Panda | 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.