| roy0121 vs Hwoarang | 8–17 | 32.00% |
| roy0121 vs Reina | 10–12 | 45.45% |
| roy0121 vs Jin | 9–10 | 47.37% |
| roy0121 vs Dragunov | 5–14 | 26.32% |
| roy0121 vs Kazuya | 3–13 | 18.75% |
| roy0121 vs Paul | 9–5 | 64.29% |
| roy0121 vs Yoshimitsu | 9–5 | 64.29% |
| roy0121 vs Lili | 5–5 | 50.00% |
| roy0121 vs Heihachi | 6–4 | 60.00% |
| roy0121 vs Law | 3–6 | 33.33% |
| roy0121 vs Asuka | 1–8 | 11.11% |
| roy0121 vs King | 3–4 | 42.86% |
| roy0121 vs Bryan | 1–6 | 14.29% |
| roy0121 vs Claudio | 1–6 | 14.29% |
| roy0121 vs Kuma | 5–1 | 83.33% |
| roy0121 vs Victor | 3–3 | 50.00% |
| roy0121 vs Lars | 1–4 | 20.00% |
| roy0121 vs Azucena | 2–3 | 40.00% |
| roy0121 vs Xiaoyu | 1–3 | 25.00% |
| roy0121 vs Steve | 1–3 | 25.00% |
| roy0121 vs Devil Jin | 0–4 | 0.00% |
| roy0121 vs Leo | 2–2 | 50.00% |
| roy0121 vs Alisa | 1–3 | 25.00% |
| roy0121 vs Lee | 2–2 | 50.00% |
| roy0121 vs Eddy | 0–4 | 0.00% |
| roy0121 vs Lidia | 4–0 | 100.00% |
| roy0121 vs Jun | 0–3 | 0.00% |
| roy0121 vs Jack-8 | 1–1 | 50.00% |
| roy0121 vs Nina | 1–1 | 50.00% |
| roy0121 vs Leroy | 2–0 | 100.00% |
| roy0121 vs Fahkumram | 0–2 | 0.00% |
| roy0121 vs Feng | 1–0 | 100.00% |
| roy0121 vs Shaheen | 1–0 | 100.00% |
| roy0121 vs Panda | 0–1 | 0.00% |
| roy0121 vs Clive | 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.