| Roy Kazama vs Reina | 10–9 | 52.63% |
| Roy Kazama vs King | 9–5 | 64.29% |
| Roy Kazama vs Yoshimitsu | 8–6 | 57.14% |
| Roy Kazama vs Jun | 10–4 | 71.43% |
| Roy Kazama vs Law | 11–2 | 84.62% |
| Roy Kazama vs Dragunov | 8–4 | 66.67% |
| Roy Kazama vs Steve | 4–7 | 36.36% |
| Roy Kazama vs Hwoarang | 8–1 | 88.89% |
| Roy Kazama vs Devil Jin | 5–4 | 55.56% |
| Roy Kazama vs Jin | 4–4 | 50.00% |
| Roy Kazama vs Bryan | 5–3 | 62.50% |
| Roy Kazama vs Lili | 1–7 | 12.50% |
| Roy Kazama vs Lee | 3–5 | 37.50% |
| Roy Kazama vs Kazuya | 5–2 | 71.43% |
| Roy Kazama vs Raven | 3–4 | 42.86% |
| Roy Kazama vs Feng | 5–1 | 83.33% |
| Roy Kazama vs Nina | 3–3 | 50.00% |
| Roy Kazama vs Victor | 3–3 | 50.00% |
| Roy Kazama vs Xiaoyu | 3–2 | 60.00% |
| Roy Kazama vs Lars | 2–3 | 40.00% |
| Roy Kazama vs Alisa | 3–2 | 60.00% |
| Roy Kazama vs Eddy | 2–3 | 40.00% |
| Roy Kazama vs Zafina | 2–2 | 50.00% |
| Roy Kazama vs Azucena | 3–0 | 100.00% |
| Roy Kazama vs Paul | 1–1 | 50.00% |
| Roy Kazama vs Jack-8 | 0–2 | 0.00% |
| Roy Kazama vs Asuka | 1–1 | 50.00% |
| Roy Kazama vs Shaheen | 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.