| Zefiro vs Steve | 5–13 | 27.78% |
| Zefiro vs Hwoarang | 7–2 | 77.78% |
| Zefiro vs Asuka | 1–8 | 11.11% |
| Zefiro vs King | 2–6 | 25.00% |
| Zefiro vs Xiaoyu | 3–3 | 50.00% |
| Zefiro vs Azucena | 2–2 | 50.00% |
| Zefiro vs Jin | 0–3 | 0.00% |
| Zefiro vs Lee | 2–1 | 66.67% |
| Zefiro vs Leroy | 1–2 | 33.33% |
| Zefiro vs Reina | 1–2 | 33.33% |
| Zefiro vs Law | 1–1 | 50.00% |
| Zefiro vs Yoshimitsu | 0–2 | 0.00% |
| Zefiro vs Bryan | 1–1 | 50.00% |
| Zefiro vs Devil Jin | 0–2 | 0.00% |
| Zefiro vs Leo | 0–2 | 0.00% |
| Zefiro vs Lars | 0–2 | 0.00% |
| Zefiro vs Claudio | 0–2 | 0.00% |
| Zefiro vs Nina | 2–0 | 100.00% |
| Zefiro vs Eddy | 0–2 | 0.00% |
| Zefiro vs Clive | 0–2 | 0.00% |
| Zefiro vs Dragunov | 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.