| Rocco_Siffredii vs King | 6–6 | 50.00% |
| Rocco_Siffredii vs Jin | 7–5 | 58.33% |
| Rocco_Siffredii vs Kazuya | 6–3 | 66.67% |
| Rocco_Siffredii vs Hwoarang | 6–2 | 75.00% |
| Rocco_Siffredii vs Lili | 6–2 | 75.00% |
| Rocco_Siffredii vs Steve | 3–3 | 50.00% |
| Rocco_Siffredii vs Victor | 1–5 | 16.67% |
| Rocco_Siffredii vs Yoshimitsu | 1–3 | 25.00% |
| Rocco_Siffredii vs Bryan | 2–2 | 50.00% |
| Rocco_Siffredii vs Jack-8 | 1–3 | 25.00% |
| Rocco_Siffredii vs Xiaoyu | 3–0 | 100.00% |
| Rocco_Siffredii vs Law | 2–0 | 100.00% |
| Rocco_Siffredii vs Lars | 2–0 | 100.00% |
| Rocco_Siffredii vs Nina | 2–0 | 100.00% |
| Rocco_Siffredii vs Leroy | 1–1 | 50.00% |
| Rocco_Siffredii vs Jun | 2–0 | 100.00% |
| Rocco_Siffredii vs Reina | 1–1 | 50.00% |
| Rocco_Siffredii vs Paul | 1–0 | 100.00% |
| Rocco_Siffredii vs Dragunov | 1–0 | 100.00% |
| Rocco_Siffredii vs Azucena | 0–1 | 0.00% |
| Rocco_Siffredii vs Eddy | 0–1 | 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.