| Erfonek vs Kazuya | 6–3 | 66.67% |
| Erfonek vs Nina | 1–6 | 14.29% |
| Erfonek vs Reina | 2–4 | 33.33% |
| Erfonek vs King | 1–4 | 20.00% |
| Erfonek vs Jin | 2–3 | 40.00% |
| Erfonek vs Steve | 3–2 | 60.00% |
| Erfonek vs Dragunov | 2–3 | 40.00% |
| Erfonek vs Jun | 3–2 | 60.00% |
| Erfonek vs Alisa | 0–4 | 0.00% |
| Erfonek vs Lee | 4–0 | 100.00% |
| Erfonek vs Heihachi | 2–2 | 50.00% |
| Erfonek vs Hwoarang | 0–3 | 0.00% |
| Erfonek vs Bryan | 0–3 | 0.00% |
| Erfonek vs Victor | 1–2 | 33.33% |
| Erfonek vs Yoshimitsu | 1–1 | 50.00% |
| Erfonek vs Xiaoyu | 2–0 | 100.00% |
| Erfonek vs Claudio | 1–1 | 50.00% |
| Erfonek vs Kuma | 1–1 | 50.00% |
| Erfonek vs Clive | 2–0 | 100.00% |
| Erfonek vs Law | 0–1 | 0.00% |
| Erfonek vs Jack-8 | 0–1 | 0.00% |
| Erfonek vs Asuka | 0–1 | 0.00% |
| Erfonek vs Lars | 0–1 | 0.00% |
| Erfonek vs Shaheen | 1–0 | 100.00% |
| Erfonek vs Leroy | 0–1 | 0.00% |
| Erfonek vs Raven | 0–1 | 0.00% |
| Erfonek vs Eddy | 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.