| Efecto Masón vs Lidia | 28–10 | 73.68% |
| Efecto Masón vs Reina | 20–9 | 68.97% |
| Efecto Masón vs Kazuya | 15–13 | 53.57% |
| Efecto Masón vs Dragunov | 12–15 | 44.44% |
| Efecto Masón vs Jun | 15–8 | 65.22% |
| Efecto Masón vs Steve | 18–4 | 81.82% |
| Efecto Masón vs Heihachi | 12–8 | 60.00% |
| Efecto Masón vs King | 12–6 | 66.67% |
| Efecto Masón vs Hwoarang | 7–10 | 41.18% |
| Efecto Masón vs Law | 9–7 | 56.25% |
| Efecto Masón vs Devil Jin | 10–6 | 62.50% |
| Efecto Masón vs Jin | 9–6 | 60.00% |
| Efecto Masón vs Asuka | 11–4 | 73.33% |
| Efecto Masón vs Eddy | 7–7 | 50.00% |
| Efecto Masón vs Bryan | 9–4 | 69.23% |
| Efecto Masón vs Azucena | 6–7 | 46.15% |
| Efecto Masón vs Yoshimitsu | 6–6 | 50.00% |
| Efecto Masón vs Nina | 10–2 | 83.33% |
| Efecto Masón vs Paul | 6–5 | 54.55% |
| Efecto Masón vs Lars | 7–4 | 63.64% |
| Efecto Masón vs Victor | 7–4 | 63.64% |
| Efecto Masón vs Xiaoyu | 7–3 | 70.00% |
| Efecto Masón vs Jack-8 | 5–4 | 55.56% |
| Efecto Masón vs Claudio | 5–4 | 55.56% |
| Efecto Masón vs Feng | 5–2 | 71.43% |
| Efecto Masón vs Alisa | 6–1 | 85.71% |
| Efecto Masón vs Zafina | 5–2 | 71.43% |
| Efecto Masón vs Lili | 6–0 | 100.00% |
| Efecto Masón vs Leo | 4–2 | 66.67% |
| Efecto Masón vs Kuma | 1–5 | 16.67% |
| Efecto Masón vs Panda | 4–1 | 80.00% |
| Efecto Masón vs Leroy | 3–0 | 100.00% |
| Efecto Masón vs Shaheen | 2–0 | 100.00% |
| Efecto Masón vs Lee | 1–1 | 50.00% |
| Efecto Masón vs Raven | 2–0 | 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.