| Zephyii vs King | 12–16 | 42.86% |
| Zephyii vs Steve | 15–12 | 55.56% |
| Zephyii vs Kazuya | 7–18 | 28.00% |
| Zephyii vs Yoshimitsu | 11–11 | 50.00% |
| Zephyii vs Jin | 8–14 | 36.36% |
| Zephyii vs Dragunov | 11–11 | 50.00% |
| Zephyii vs Reina | 13–8 | 61.90% |
| Zephyii vs Bryan | 9–9 | 50.00% |
| Zephyii vs Lili | 11–7 | 61.11% |
| Zephyii vs Lidia | 5–10 | 33.33% |
| Zephyii vs Asuka | 6–7 | 46.15% |
| Zephyii vs Nina | 3–10 | 23.08% |
| Zephyii vs Lee | 5–8 | 38.46% |
| Zephyii vs Law | 3–9 | 25.00% |
| Zephyii vs Azucena | 7–5 | 58.33% |
| Zephyii vs Alisa | 5–6 | 45.45% |
| Zephyii vs Leo | 4–6 | 40.00% |
| Zephyii vs Leroy | 7–3 | 70.00% |
| Zephyii vs Jun | 8–2 | 80.00% |
| Zephyii vs Eddy | 1–9 | 10.00% |
| Zephyii vs Lars | 5–4 | 55.56% |
| Zephyii vs Kuma | 7–2 | 77.78% |
| Zephyii vs Paul | 2–6 | 25.00% |
| Zephyii vs Victor | 4–4 | 50.00% |
| Zephyii vs Claudio | 3–4 | 42.86% |
| Zephyii vs Hwoarang | 0–5 | 0.00% |
| Zephyii vs Xiaoyu | 3–2 | 60.00% |
| Zephyii vs Shaheen | 3–2 | 60.00% |
| Zephyii vs Feng | 3–1 | 75.00% |
| Zephyii vs Devil Jin | 0–2 | 0.00% |
| Zephyii vs Raven | 0–2 | 0.00% |
| Zephyii vs Jack-8 | 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.