| Mach20 vs Steve | 4–5 | 44.44% |
| Mach20 vs Reina | 5–3 | 62.50% |
| Mach20 vs Lidia | 2–3 | 40.00% |
| Mach20 vs Dragunov | 2–1 | 66.67% |
| Mach20 vs Law | 0–2 | 0.00% |
| Mach20 vs Lili | 0–2 | 0.00% |
| Mach20 vs Lars | 0–2 | 0.00% |
| Mach20 vs Kuma | 1–1 | 50.00% |
| Mach20 vs Leroy | 2–0 | 100.00% |
| Mach20 vs Heihachi | 2–0 | 100.00% |
| Mach20 vs Xiaoyu | 0–2 | 0.00% |
| Mach20 vs Jin | 0–2 | 0.00% |
| Mach20 vs Asuka | 2–0 | 100.00% |
| Mach20 vs Alisa | 0–2 | 0.00% |
| Mach20 vs Nina | 2–0 | 100.00% |
| Mach20 vs Jun | 0–2 | 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.