| Ecchigami vs Reina | 17–11 | 60.71% |
| Ecchigami vs Kazuya | 13–10 | 56.52% |
| Ecchigami vs King | 9–7 | 56.25% |
| Ecchigami vs Hwoarang | 9–6 | 60.00% |
| Ecchigami vs Jin | 7–8 | 46.67% |
| Ecchigami vs Law | 4–10 | 28.57% |
| Ecchigami vs Claudio | 3–7 | 30.00% |
| Ecchigami vs Bryan | 4–5 | 44.44% |
| Ecchigami vs Azucena | 5–4 | 55.56% |
| Ecchigami vs Yoshimitsu | 4–4 | 50.00% |
| Ecchigami vs Devil Jin | 1–7 | 12.50% |
| Ecchigami vs Lili | 1–6 | 14.29% |
| Ecchigami vs Jun | 2–5 | 28.57% |
| Ecchigami vs Lee | 1–5 | 16.67% |
| Ecchigami vs Victor | 2–4 | 33.33% |
| Ecchigami vs Eddy | 2–4 | 33.33% |
| Ecchigami vs Paul | 4–1 | 80.00% |
| Ecchigami vs Xiaoyu | 4–1 | 80.00% |
| Ecchigami vs Asuka | 3–2 | 60.00% |
| Ecchigami vs Leo | 0–4 | 0.00% |
| Ecchigami vs Leroy | 2–2 | 50.00% |
| Ecchigami vs Dragunov | 2–1 | 66.67% |
| Ecchigami vs Alisa | 0–3 | 0.00% |
| Ecchigami vs Feng | 2–0 | 100.00% |
| Ecchigami vs Lars | 0–2 | 0.00% |
| Ecchigami vs Zafina | 2–0 | 100.00% |
| Ecchigami vs Heihachi | 2–0 | 100.00% |
| Ecchigami vs Steve | 0–1 | 0.00% |
| Ecchigami vs Nina | 1–0 | 100.00% |
| Ecchigami vs Kuma | 1–0 | 100.00% |
| Ecchigami vs Lidia | 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.