| Efee vs Kazuya | 24–25–1 | 48.98% |
| Efee vs Jin | 19–17 | 52.78% |
| Efee vs Hwoarang | 13–22 | 37.14% |
| Efee vs King | 13–21 | 38.24% |
| Efee vs Clive | 15–14 | 51.72% |
| Efee vs Lili | 15–13 | 53.57% |
| Efee vs Reina | 14–14 | 50.00% |
| Efee vs Law | 14–12 | 53.85% |
| Efee vs Bryan | 12–11 | 52.17% |
| Efee vs Asuka | 12–9 | 57.14% |
| Efee vs Paul | 8–11 | 42.11% |
| Efee vs Yoshimitsu | 7–12 | 36.84% |
| Efee vs Steve | 12–6 | 66.67% |
| Efee vs Heihachi | 12–5 | 70.59% |
| Efee vs Eddy | 4–11 | 26.67% |
| Efee vs Lars | 10–4 | 71.43% |
| Efee vs Azucena | 7–7 | 50.00% |
| Efee vs Xiaoyu | 7–6 | 53.85% |
| Efee vs Jack-8 | 4–9 | 30.77% |
| Efee vs Alisa | 5–8 | 38.46% |
| Efee vs Feng | 4–8 | 33.33% |
| Efee vs Armor King | 5–7 | 41.67% |
| Efee vs Devil Jin | 5–6 | 45.45% |
| Efee vs Nina | 9–2 | 81.82% |
| Efee vs Lee | 3–8 | 27.27% |
| Efee vs Dragunov | 5–5 | 50.00% |
| Efee vs Shaheen | 5–5 | 50.00% |
| Efee vs Jun | 9–1 | 90.00% |
| Efee vs Victor | 2–8 | 20.00% |
| Efee vs Lidia | 6–3 | 66.67% |
| Efee vs Claudio | 1–6 | 14.29% |
| Efee vs Anna | 3–3 | 50.00% |
| Efee vs Zafina | 1–4 | 20.00% |
| Efee vs Leo | 1–2 | 33.33% |
| Efee vs Leroy | 1–2 | 33.33% |
| Efee vs Fahkumram | 1–2 | 33.33% |
| Efee vs Kuma | 2–0 | 100.00% |
| Efee vs Miary Zo | 2–0 | 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.