| Yamask vs Eddy | 16–17 | 48.48% |
| Yamask vs Jin | 15–16 | 48.39% |
| Yamask vs Kazuya | 19–8 | 70.37% |
| Yamask vs Reina | 18–8 | 69.23% |
| Yamask vs Yoshimitsu | 14–11 | 56.00% |
| Yamask vs Dragunov | 15–10 | 60.00% |
| Yamask vs King | 12–9 | 57.14% |
| Yamask vs Bryan | 9–11 | 45.00% |
| Yamask vs Nina | 11–9 | 55.00% |
| Yamask vs Azucena | 12–8 | 60.00% |
| Yamask vs Jun | 9–6 | 60.00% |
| Yamask vs Feng | 10–4 | 71.43% |
| Yamask vs Devil Jin | 6–5 | 54.55% |
| Yamask vs Lili | 5–6 | 45.45% |
| Yamask vs Law | 4–6 | 40.00% |
| Yamask vs Asuka | 8–2 | 80.00% |
| Yamask vs Lars | 7–3 | 70.00% |
| Yamask vs Victor | 5–5 | 50.00% |
| Yamask vs Hwoarang | 1–8 | 11.11% |
| Yamask vs Steve | 5–4 | 55.56% |
| Yamask vs Shaheen | 5–4 | 55.56% |
| Yamask vs Lee | 4–5 | 44.44% |
| Yamask vs Paul | 5–3 | 62.50% |
| Yamask vs Xiaoyu | 4–4 | 50.00% |
| Yamask vs Kuma | 3–5 | 37.50% |
| Yamask vs Raven | 1–7 | 12.50% |
| Yamask vs Leo | 4–2 | 66.67% |
| Yamask vs Alisa | 2–4 | 33.33% |
| Yamask vs Jack-8 | 1–2 | 33.33% |
| Yamask vs Leroy | 2–1 | 66.67% |
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.