| efkay1 vs Hwoarang | 10–6 | 62.50% |
| efkay1 vs Jin | 7–7 | 50.00% |
| efkay1 vs Lidia | 8–5 | 61.54% |
| efkay1 vs Steve | 7–5 | 58.33% |
| efkay1 vs Lili | 5–6 | 45.45% |
| efkay1 vs Dragunov | 2–8 | 20.00% |
| efkay1 vs Reina | 5–5 | 50.00% |
| efkay1 vs Kazuya | 4–4 | 50.00% |
| efkay1 vs King | 5–2 | 71.43% |
| efkay1 vs Yoshimitsu | 5–2 | 71.43% |
| efkay1 vs Asuka | 4–3 | 57.14% |
| efkay1 vs Law | 5–1 | 83.33% |
| efkay1 vs Nina | 3–3 | 50.00% |
| efkay1 vs Victor | 4–2 | 66.67% |
| efkay1 vs Paul | 2–3 | 40.00% |
| efkay1 vs Leroy | 4–1 | 80.00% |
| efkay1 vs Claudio | 4–0 | 100.00% |
| efkay1 vs Heihachi | 1–3 | 25.00% |
| efkay1 vs Xiaoyu | 0–3 | 0.00% |
| efkay1 vs Bryan | 3–0 | 100.00% |
| efkay1 vs Devil Jin | 1–2 | 33.33% |
| efkay1 vs Leo | 2–1 | 66.67% |
| efkay1 vs Lee | 3–0 | 100.00% |
| efkay1 vs Jun | 3–0 | 100.00% |
| efkay1 vs Feng | 0–2 | 0.00% |
| efkay1 vs Lars | 0–2 | 0.00% |
| efkay1 vs Kuma | 1–1 | 50.00% |
| efkay1 vs Raven | 0–2 | 0.00% |
| efkay1 vs Eddy | 0–2 | 0.00% |
| efkay1 vs Alisa | 0–1 | 0.00% |
| efkay1 vs Azucena | 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.