| Eikichi vs King | 25–33 | 43.10% |
| Eikichi vs Steve | 18–40 | 31.03% |
| Eikichi vs Jin | 23–29 | 44.23% |
| Eikichi vs Law | 18–26 | 40.91% |
| Eikichi vs Hwoarang | 13–28 | 31.71% |
| Eikichi vs Miary Zo | 13–22 | 37.14% |
| Eikichi vs Lili | 12–18 | 40.00% |
| Eikichi vs Victor | 11–19 | 36.67% |
| Eikichi vs Armor King | 8–22 | 26.67% |
| Eikichi vs Kazuya | 10–18 | 35.71% |
| Eikichi vs Dragunov | 9–16 | 36.00% |
| Eikichi vs Reina | 10–10 | 50.00% |
| Eikichi vs Azucena | 3–17 | 15.00% |
| Eikichi vs Lee | 10–9 | 52.63% |
| Eikichi vs Heihachi | 7–12 | 36.84% |
| Eikichi vs Fahkumram | 9–10 | 47.37% |
| Eikichi vs Paul | 8–9 | 47.06% |
| Eikichi vs Yoshimitsu | 9–7 | 56.25% |
| Eikichi vs Bryan | 7–8 | 46.67% |
| Eikichi vs Leo | 6–9 | 40.00% |
| Eikichi vs Lars | 2–13 | 13.33% |
| Eikichi vs Clive | 0–15 | 0.00% |
| Eikichi vs Asuka | 3–11 | 21.43% |
| Eikichi vs Nina | 5–9 | 35.71% |
| Eikichi vs Devil Jin | 5–8 | 38.46% |
| Eikichi vs Shaheen | 10–2 | 83.33% |
| Eikichi vs Jun | 3–9 | 25.00% |
| Eikichi vs Eddy | 2–10 | 16.67% |
| Eikichi vs Anna | 4–6 | 40.00% |
| Eikichi vs Alisa | 6–0 | 100.00% |
| Eikichi vs Claudio | 2–4 | 33.33% |
| Eikichi vs Xiaoyu | 2–3 | 40.00% |
| Eikichi vs Jack-8 | 2–2 | 50.00% |
| Eikichi vs Panda | 0–4 | 0.00% |
| Eikichi vs Zafina | 1–3 | 25.00% |
| Eikichi vs Lidia | 2–2 | 50.00% |
| Eikichi vs Leroy | 2–1 | 66.67% |
| Eikichi vs Raven | 2–1 | 66.67% |
| Eikichi vs Kuma | 1–1 | 50.00% |
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.