| Ephraim vs Reina | 8–4 | 66.67% |
| Ephraim vs Lars | 8–2 | 80.00% |
| Ephraim vs Eddy | 1–8 | 11.11% |
| Ephraim vs Leo | 3–5 | 37.50% |
| Ephraim vs Azucena | 3–5 | 37.50% |
| Ephraim vs Feng | 2–5 | 28.57% |
| Ephraim vs Nina | 4–2 | 66.67% |
| Ephraim vs Kazuya | 1–4 | 20.00% |
| Ephraim vs Lili | 2–3 | 40.00% |
| Ephraim vs Alisa | 3–2 | 60.00% |
| Ephraim vs King | 1–3 | 25.00% |
| Ephraim vs Jin | 2–2 | 50.00% |
| Ephraim vs Steve | 3–1 | 75.00% |
| Ephraim vs Devil Jin | 1–3 | 25.00% |
| Ephraim vs Paul | 1–2 | 33.33% |
| Ephraim vs Jack-8 | 2–1 | 66.67% |
| Ephraim vs Dragunov | 2–1 | 66.67% |
| Ephraim vs Jun | 3–0 | 100.00% |
| Ephraim vs Hwoarang | 0–2 | 0.00% |
| Ephraim vs Bryan | 0–2 | 0.00% |
| Ephraim vs Zafina | 0–2 | 0.00% |
| Ephraim vs Leroy | 0–2 | 0.00% |
| Ephraim vs Raven | 0–2 | 0.00% |
| Ephraim vs Law | 0–1 | 0.00% |
| Ephraim vs Lee | 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.