| Masui vs Bryan | 9–13 | 40.91% |
| Masui vs Armor King | 14–7 | 66.67% |
| Masui vs Jin | 14–4 | 77.78% |
| Masui vs Hwoarang | 9–7 | 56.25% |
| Masui vs Yoshimitsu | 8–7 | 53.33% |
| Masui vs Kazuya | 13–2 | 86.67% |
| Masui vs Steve | 10–5 | 66.67% |
| Masui vs King | 11–3 | 78.57% |
| Masui vs Paul | 6–4 | 60.00% |
| Masui vs Lili | 3–7 | 30.00% |
| Masui vs Law | 5–4 | 55.56% |
| Masui vs Leo | 3–6 | 33.33% |
| Masui vs Lee | 2–7 | 22.22% |
| Masui vs Zafina | 2–7 | 22.22% |
| Masui vs Reina | 5–4 | 55.56% |
| Masui vs Miary Zo | 6–2 | 75.00% |
| Masui vs Xiaoyu | 3–4 | 42.86% |
| Masui vs Shaheen | 6–1 | 85.71% |
| Masui vs Azucena | 5–2 | 71.43% |
| Masui vs Raven | 3–4 | 42.86% |
| Masui vs Heihachi | 2–5 | 28.57% |
| Masui vs Jun | 4–2 | 66.67% |
| Masui vs Fahkumram | 3–3 | 50.00% |
| Masui vs Devil Jin | 3–2 | 60.00% |
| Masui vs Lars | 4–1 | 80.00% |
| Masui vs Alisa | 2–3 | 40.00% |
| Masui vs Eddy | 3–2 | 60.00% |
| Masui vs Lidia | 2–3 | 40.00% |
| Masui vs Asuka | 3–1 | 75.00% |
| Masui vs Feng | 2–2 | 50.00% |
| Masui vs Dragunov | 2–2 | 50.00% |
| Masui vs Victor | 4–0 | 100.00% |
| Masui vs Claudio | 2–1 | 66.67% |
| Masui vs Anna | 0–2 | 0.00% |
| Masui vs Jack-8 | 1–0 | 100.00% |
| Masui vs Panda | 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.