| ecchikara vs Reina | 8–9 | 47.06% |
| ecchikara vs Dragunov | 6–10 | 37.50% |
| ecchikara vs Jin | 5–10 | 33.33% |
| ecchikara vs Nina | 5–10 | 33.33% |
| ecchikara vs Kazuya | 6–5 | 54.55% |
| ecchikara vs King | 2–8 | 20.00% |
| ecchikara vs Victor | 3–7 | 30.00% |
| ecchikara vs Steve | 3–5 | 37.50% |
| ecchikara vs Feng | 0–8 | 0.00% |
| ecchikara vs Lili | 2–6 | 25.00% |
| ecchikara vs Shaheen | 1–6 | 14.29% |
| ecchikara vs Kuma | 2–5 | 28.57% |
| ecchikara vs Asuka | 1–5 | 16.67% |
| ecchikara vs Lee | 3–3 | 50.00% |
| ecchikara vs Paul | 2–3 | 40.00% |
| ecchikara vs Yoshimitsu | 1–4 | 20.00% |
| ecchikara vs Xiaoyu | 3–2 | 60.00% |
| ecchikara vs Claudio | 1–4 | 20.00% |
| ecchikara vs Azucena | 3–2 | 60.00% |
| ecchikara vs Jun | 0–4 | 0.00% |
| ecchikara vs Law | 0–2 | 0.00% |
| ecchikara vs Hwoarang | 0–2 | 0.00% |
| ecchikara vs Bryan | 0–1 | 0.00% |
| ecchikara vs Lars | 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.