| Zay1 vs Reina | 2–3 | 40.00% |
| Zay1 vs Eddy | 1–4 | 20.00% |
| Zay1 vs Jin | 1–2 | 33.33% |
| Zay1 vs Feng | 2–1 | 66.67% |
| Zay1 vs Lili | 2–1 | 66.67% |
| Zay1 vs Bryan | 0–2 | 0.00% |
| Zay1 vs Dragunov | 0–2 | 0.00% |
| Zay1 vs Hwoarang | 1–0 | 100.00% |
| Zay1 vs Asuka | 1–0 | 100.00% |
| Zay1 vs Shaheen | 1–0 | 100.00% |
| Zay1 vs Victor | 1–0 | 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.