| Roy420 vs Reina | 31–18 | 63.27% |
| Roy420 vs Hwoarang | 24–9 | 72.73% |
| Roy420 vs King | 15–13 | 53.57% |
| Roy420 vs Steve | 17–7 | 70.83% |
| Roy420 vs Jin | 11–11 | 50.00% |
| Roy420 vs Heihachi | 12–7 | 63.16% |
| Roy420 vs Eddy | 8–10 | 44.44% |
| Roy420 vs Jun | 11–6 | 64.71% |
| Roy420 vs Kazuya | 10–6 | 62.50% |
| Roy420 vs Azucena | 8–5 | 61.54% |
| Roy420 vs Lidia | 8–4 | 66.67% |
| Roy420 vs Law | 8–3 | 72.73% |
| Roy420 vs Bryan | 6–5 | 54.55% |
| Roy420 vs Lee | 9–2 | 81.82% |
| Roy420 vs Yoshimitsu | 6–4 | 60.00% |
| Roy420 vs Lili | 3–7 | 30.00% |
| Roy420 vs Dragunov | 4–6 | 40.00% |
| Roy420 vs Jack-8 | 7–2 | 77.78% |
| Roy420 vs Leo | 5–2 | 71.43% |
| Roy420 vs Kuma | 5–2 | 71.43% |
| Roy420 vs Asuka | 5–1 | 83.33% |
| Roy420 vs Zafina | 3–3 | 50.00% |
| Roy420 vs Leroy | 3–3 | 50.00% |
| Roy420 vs Victor | 3–3 | 50.00% |
| Roy420 vs Clive | 6–0 | 100.00% |
| Roy420 vs Xiaoyu | 5–0 | 100.00% |
| Roy420 vs Alisa | 3–1 | 75.00% |
| Roy420 vs Feng | 1–2 | 33.33% |
| Roy420 vs Lars | 2–1 | 66.67% |
| Roy420 vs Claudio | 1–2 | 33.33% |
| Roy420 vs Nina | 2–1 | 66.67% |
| Roy420 vs Devil Jin | 2–0 | 100.00% |
| Roy420 vs Shaheen | 1–1 | 50.00% |
| Roy420 vs Paul | 0–1 | 0.00% |
| Roy420 vs Armor King | 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.