| Cool. Mason vs King | 6–42 | 12.50% |
| Cool. Mason vs Reina | 7–39 | 15.22% |
| Cool. Mason vs Jin | 2–39 | 4.88% |
| Cool. Mason vs Hwoarang | 4–35 | 10.26% |
| Cool. Mason vs Lili | 4–29 | 12.12% |
| Cool. Mason vs Law | 3–29 | 9.38% |
| Cool. Mason vs Steve | 2–30 | 6.25% |
| Cool. Mason vs Bryan | 1–23 | 4.17% |
| Cool. Mason vs Asuka | 6–18 | 25.00% |
| Cool. Mason vs Jun | 0–23 | 0.00% |
| Cool. Mason vs Eddy | 0–23 | 0.00% |
| Cool. Mason vs Alisa | 2–18 | 10.00% |
| Cool. Mason vs Victor | 2–17 | 10.53% |
| Cool. Mason vs Yoshimitsu | 0–17 | 0.00% |
| Cool. Mason vs Dragunov | 2–15 | 11.76% |
| Cool. Mason vs Leroy | 1–16 | 5.88% |
| Cool. Mason vs Paul | 2–13 | 13.33% |
| Cool. Mason vs Nina | 2–13 | 13.33% |
| Cool. Mason vs Lee | 3–11 | 21.43% |
| Cool. Mason vs Azucena | 3–11 | 21.43% |
| Cool. Mason vs Raven | 1–12 | 7.69% |
| Cool. Mason vs Kazuya | 1–10 | 9.09% |
| Cool. Mason vs Lars | 2–9 | 18.18% |
| Cool. Mason vs Zafina | 4–7 | 36.36% |
| Cool. Mason vs Leo | 2–8 | 20.00% |
| Cool. Mason vs Shaheen | 1–9 | 10.00% |
| Cool. Mason vs Xiaoyu | 0–8 | 0.00% |
| Cool. Mason vs Devil Jin | 0–8 | 0.00% |
| Cool. Mason vs Feng | 1–4 | 20.00% |
| Cool. Mason vs Kuma | 0–4 | 0.00% |
| Cool. Mason vs Claudio | 0–3 | 0.00% |
| Cool. Mason vs Lidia | 1–2 | 33.33% |
| Cool. Mason vs Jack-8 | 0–1 | 0.00% |
| Cool. Mason vs Panda | 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.