| GDO_MASON vs Steve | 8–1 | 88.89% |
| GDO_MASON vs Heihachi | 9–0 | 100.00% |
| GDO_MASON vs Jin | 7–1 | 87.50% |
| GDO_MASON vs Nina | 7–0 | 100.00% |
| GDO_MASON vs Anna | 7–0 | 100.00% |
| GDO_MASON vs Reina | 6–0 | 100.00% |
| GDO_MASON vs Raven | 6–0 | 100.00% |
| GDO_MASON vs King | 4–1 | 80.00% |
| GDO_MASON vs Hwoarang | 4–1 | 80.00% |
| GDO_MASON vs Eddy | 5–0 | 100.00% |
| GDO_MASON vs Bryan | 3–1 | 75.00% |
| GDO_MASON vs Zafina | 3–1 | 75.00% |
| GDO_MASON vs Clive | 4–0 | 100.00% |
| GDO_MASON vs Dragunov | 3–0 | 100.00% |
| GDO_MASON vs Lars | 3–0 | 100.00% |
| GDO_MASON vs Law | 2–0 | 100.00% |
| GDO_MASON vs Xiaoyu | 1–1 | 50.00% |
| GDO_MASON vs Kazuya | 2–0 | 100.00% |
| GDO_MASON vs Asuka | 2–0 | 100.00% |
| GDO_MASON vs Lili | 2–0 | 100.00% |
| GDO_MASON vs Leo | 2–0 | 100.00% |
| GDO_MASON vs Claudio | 2–0 | 100.00% |
| GDO_MASON vs Leroy | 1–1 | 50.00% |
| GDO_MASON vs Azucena | 2–0 | 100.00% |
| GDO_MASON vs Jack-8 | 1–0 | 100.00% |
| GDO_MASON vs Devil Jin | 1–0 | 100.00% |
| GDO_MASON vs Feng | 1–0 | 100.00% |
| GDO_MASON vs Shaheen | 0–1 | 0.00% |
| GDO_MASON vs Lee | 1–0 | 100.00% |
| GDO_MASON vs Victor | 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.