| Mastachio vs Steve | 8–1 | 88.89% |
| Mastachio vs Reina | 8–1 | 88.89% |
| Mastachio vs King | 5–2 | 71.43% |
| Mastachio vs Victor | 4–3 | 57.14% |
| Mastachio vs Yoshimitsu | 2–3 | 40.00% |
| Mastachio vs Nina | 3–2 | 60.00% |
| Mastachio vs Asuka | 1–3 | 25.00% |
| Mastachio vs Feng | 2–2 | 50.00% |
| Mastachio vs Lidia | 2–2 | 50.00% |
| Mastachio vs Lili | 2–1 | 66.67% |
| Mastachio vs Dragunov | 2–1 | 66.67% |
| Mastachio vs Jun | 2–1 | 66.67% |
| Mastachio vs Law | 2–0 | 100.00% |
| Mastachio vs Hwoarang | 2–0 | 100.00% |
| Mastachio vs Jin | 2–0 | 100.00% |
| Mastachio vs Kazuya | 2–0 | 100.00% |
| Mastachio vs Lars | 2–0 | 100.00% |
| Mastachio vs Leroy | 0–2 | 0.00% |
| Mastachio vs Azucena | 2–0 | 100.00% |
| Mastachio vs Eddy | 1–1 | 50.00% |
| Mastachio vs Devil Jin | 0–1 | 0.00% |
| Mastachio vs Alisa | 0–1 | 0.00% |
| Mastachio vs Lee | 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.