| Zelfer vs Dragunov | 8–15 | 34.78% |
| Zelfer vs Kazuya | 6–15 | 28.57% |
| Zelfer vs Jin | 6–13 | 31.58% |
| Zelfer vs Heihachi | 9–8 | 52.94% |
| Zelfer vs Bryan | 10–5 | 66.67% |
| Zelfer vs Victor | 9–6 | 60.00% |
| Zelfer vs Steve | 3–9 | 25.00% |
| Zelfer vs Asuka | 6–6 | 50.00% |
| Zelfer vs Reina | 5–6 | 45.45% |
| Zelfer vs Eddy | 8–3 | 72.73% |
| Zelfer vs Law | 6–4 | 60.00% |
| Zelfer vs King | 5–5 | 50.00% |
| Zelfer vs Hwoarang | 4–6 | 40.00% |
| Zelfer vs Xiaoyu | 6–4 | 60.00% |
| Zelfer vs Paul | 2–7 | 22.22% |
| Zelfer vs Lili | 2–6 | 25.00% |
| Zelfer vs Alisa | 5–3 | 62.50% |
| Zelfer vs Yoshimitsu | 4–2 | 66.67% |
| Zelfer vs Devil Jin | 2–4 | 33.33% |
| Zelfer vs Feng | 2–4 | 33.33% |
| Zelfer vs Lee | 2–4 | 33.33% |
| Zelfer vs Jack-8 | 4–1 | 80.00% |
| Zelfer vs Panda | 0–4 | 0.00% |
| Zelfer vs Claudio | 0–3 | 0.00% |
| Zelfer vs Jun | 2–1 | 66.67% |
| Zelfer vs Lidia | 1–2 | 33.33% |
| Zelfer vs Clive | 2–1 | 66.67% |
| Zelfer vs Lars | 0–2 | 0.00% |
| Zelfer vs Nina | 0–2 | 0.00% |
| Zelfer vs Raven | 2–0 | 100.00% |
| Zelfer vs Leo | 0–1 | 0.00% |
| Zelfer vs Azucena | 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.