| Eiji vs Jin | 41–42 | 49.40% |
| Eiji vs Dragunov | 35–36 | 49.30% |
| Eiji vs Kazuya | 26–39 | 40.00% |
| Eiji vs Heihachi | 22–42 | 34.38% |
| Eiji vs Hwoarang | 26–27 | 49.06% |
| Eiji vs Victor | 22–28 | 44.00% |
| Eiji vs King | 25–24 | 51.02% |
| Eiji vs Reina | 23–22 | 51.11% |
| Eiji vs Lili | 14–20 | 41.18% |
| Eiji vs Bryan | 9–24 | 27.27% |
| Eiji vs Jun | 14–19 | 42.42% |
| Eiji vs Steve | 7–19 | 26.92% |
| Eiji vs Nina | 11–15 | 42.31% |
| Eiji vs Yoshimitsu | 12–13 | 48.00% |
| Eiji vs Eddy | 13–12 | 52.00% |
| Eiji vs Asuka | 8–12 | 40.00% |
| Eiji vs Law | 10–8 | 55.56% |
| Eiji vs Devil Jin | 6–12 | 33.33% |
| Eiji vs Lee | 8–10 | 44.44% |
| Eiji vs Paul | 5–11 | 31.25% |
| Eiji vs Lars | 7–8 | 46.67% |
| Eiji vs Lidia | 5–10 | 33.33% |
| Eiji vs Alisa | 6–7 | 46.15% |
| Eiji vs Kuma | 5–8 | 38.46% |
| Eiji vs Raven | 5–7 | 41.67% |
| Eiji vs Xiaoyu | 6–5 | 54.55% |
| Eiji vs Feng | 4–7 | 36.36% |
| Eiji vs Claudio | 4–6 | 40.00% |
| Eiji vs Leroy | 6–4 | 60.00% |
| Eiji vs Leo | 4–5 | 44.44% |
| Eiji vs Azucena | 6–3 | 66.67% |
| Eiji vs Jack-8 | 3–5 | 37.50% |
| Eiji vs Shaheen | 2–5 | 28.57% |
| Eiji vs Zafina | 3–3 | 50.00% |
| Eiji vs Clive | 3–3 | 50.00% |
| Eiji vs Armor King | 5–0 | 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.