| Zéfir vs King | 12–15 | 44.44% |
| Zéfir vs Kazuya | 8–12 | 40.00% |
| Zéfir vs Paul | 2–15 | 11.76% |
| Zéfir vs Clive | 8–9 | 47.06% |
| Zéfir vs Jin | 7–8 | 46.67% |
| Zéfir vs Steve | 7–7 | 50.00% |
| Zéfir vs Reina | 8–6 | 57.14% |
| Zéfir vs Hwoarang | 7–5 | 58.33% |
| Zéfir vs Victor | 8–4 | 66.67% |
| Zéfir vs Jun | 7–4 | 63.64% |
| Zéfir vs Anna | 5–6 | 45.45% |
| Zéfir vs Asuka | 6–4 | 60.00% |
| Zéfir vs Eddy | 6–4 | 60.00% |
| Zéfir vs Bryan | 5–4 | 55.56% |
| Zéfir vs Jack-8 | 3–5 | 37.50% |
| Zéfir vs Law | 2–5 | 28.57% |
| Zéfir vs Lee | 4–3 | 57.14% |
| Zéfir vs Heihachi | 1–6 | 14.29% |
| Zéfir vs Dragunov | 1–5 | 16.67% |
| Zéfir vs Yoshimitsu | 2–3 | 40.00% |
| Zéfir vs Leroy | 1–4 | 20.00% |
| Zéfir vs Azucena | 1–4 | 20.00% |
| Zéfir vs Devil Jin | 1–2 | 33.33% |
| Zéfir vs Leo | 2–1 | 66.67% |
| Zéfir vs Nina | 2–1 | 66.67% |
| Zéfir vs Lidia | 2–1 | 66.67% |
| Zéfir vs Fahkumram | 2–1 | 66.67% |
| Zéfir vs Lili | 0–2 | 0.00% |
| Zéfir vs Lars | 0–2 | 0.00% |
| Zéfir vs Shaheen | 0–2 | 0.00% |
| Zéfir vs Kuma | 0–2 | 0.00% |
| Zéfir vs Armor King | 0–2 | 0.00% |
| Zéfir vs Xiaoyu | 1–0 | 100.00% |
| Zéfir vs Alisa | 0–1 | 0.00% |
| Zéfir vs Zafina | 1–0 | 100.00% |
| Zéfir vs Miary Zo | 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.