| Jimmy Mason vs Hwoarang | 13–5 | 72.22% |
| Jimmy Mason vs Reina | 6–6 | 50.00% |
| Jimmy Mason vs Jin | 9–2 | 81.82% |
| Jimmy Mason vs King | 6–4 | 60.00% |
| Jimmy Mason vs Bryan | 4–4 | 50.00% |
| Jimmy Mason vs Steve | 6–2 | 75.00% |
| Jimmy Mason vs Dragunov | 5–2 | 71.43% |
| Jimmy Mason vs Fahkumram | 4–3 | 57.14% |
| Jimmy Mason vs Lili | 4–2 | 66.67% |
| Jimmy Mason vs Kazuya | 1–4 | 20.00% |
| Jimmy Mason vs Jack-8 | 4–0 | 100.00% |
| Jimmy Mason vs Alisa | 4–0 | 100.00% |
| Jimmy Mason vs Lee | 1–3 | 25.00% |
| Jimmy Mason vs Victor | 3–1 | 75.00% |
| Jimmy Mason vs Paul | 2–1 | 66.67% |
| Jimmy Mason vs Law | 1–2 | 33.33% |
| Jimmy Mason vs Shaheen | 2–1 | 66.67% |
| Jimmy Mason vs Leroy | 3–0 | 100.00% |
| Jimmy Mason vs Jun | 2–0 | 100.00% |
| Jimmy Mason vs Asuka | 1–0 | 100.00% |
| Jimmy Mason vs Nina | 1–0 | 100.00% |
| Jimmy Mason vs Eddy | 1–0 | 100.00% |
| Jimmy Mason vs Heihachi | 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.