| Roshan vs Hwoarang | 6–6 | 50.00% |
| Roshan vs King | 5–2 | 71.43% |
| Roshan vs Feng | 6–1 | 85.71% |
| Roshan vs Law | 5–1 | 83.33% |
| Roshan vs Jin | 4–2 | 66.67% |
| Roshan vs Victor | 4–2 | 66.67% |
| Roshan vs Heihachi | 4–2 | 66.67% |
| Roshan vs Xiaoyu | 4–1 | 80.00% |
| Roshan vs Nina | 5–0 | 100.00% |
| Roshan vs Kazuya | 4–0 | 100.00% |
| Roshan vs Lidia | 3–1 | 75.00% |
| Roshan vs Paul | 1–2 | 33.33% |
| Roshan vs Kuma | 0–3 | 0.00% |
| Roshan vs Raven | 3–0 | 100.00% |
| Roshan vs Eddy | 2–1 | 66.67% |
| Roshan vs Yoshimitsu | 1–1 | 50.00% |
| Roshan vs Steve | 2–0 | 100.00% |
| Roshan vs Jack-8 | 2–0 | 100.00% |
| Roshan vs Alisa | 2–0 | 100.00% |
| Roshan vs Lee | 2–0 | 100.00% |
| Roshan vs Jun | 2–0 | 100.00% |
| Roshan vs Reina | 2–0 | 100.00% |
| Roshan vs Clive | 2–0 | 100.00% |
| Roshan vs Miary Zo | 2–0 | 100.00% |
| Roshan vs Bryan | 1–0 | 100.00% |
| Roshan vs Dragunov | 0–1 | 0.00% |
| Roshan vs Leo | 1–0 | 100.00% |
| Roshan vs Anna | 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.