| Ecko vs Jin | 37–47 | 44.05% |
| Ecko vs Kazuya | 49–34 | 59.04% |
| Ecko vs Reina | 42–35 | 54.55% |
| Ecko vs King | 27–29 | 48.21% |
| Ecko vs Dragunov | 25–26 | 49.02% |
| Ecko vs Hwoarang | 13–26 | 33.33% |
| Ecko vs Bryan | 16–22 | 42.11% |
| Ecko vs Lidia | 20–18 | 52.63% |
| Ecko vs Steve | 14–23 | 37.84% |
| Ecko vs Law | 11–25 | 30.56% |
| Ecko vs Asuka | 12–21 | 36.36% |
| Ecko vs Lili | 15–18 | 45.45% |
| Ecko vs Yoshimitsu | 11–18 | 37.93% |
| Ecko vs Lars | 10–18 | 35.71% |
| Ecko vs Lee | 8–19 | 29.63% |
| Ecko vs Victor | 13–14 | 48.15% |
| Ecko vs Azucena | 8–17 | 32.00% |
| Ecko vs Jun | 14–10 | 58.33% |
| Ecko vs Claudio | 7–15 | 31.82% |
| Ecko vs Xiaoyu | 6–15 | 28.57% |
| Ecko vs Paul | 6–13 | 31.58% |
| Ecko vs Devil Jin | 6–11 | 35.29% |
| Ecko vs Leo | 4–13 | 23.53% |
| Ecko vs Alisa | 4–13 | 23.53% |
| Ecko vs Jack-8 | 3–10 | 23.08% |
| Ecko vs Kuma | 5–6 | 45.45% |
| Ecko vs Feng | 4–6 | 40.00% |
| Ecko vs Nina | 3–5 | 37.50% |
| Ecko vs Shaheen | 1–6 | 14.29% |
| Ecko vs Eddy | 4–3 | 57.14% |
| Ecko vs Heihachi | 3–2 | 60.00% |
| Ecko vs Raven | 2–2 | 50.00% |
| Ecko vs Leroy | 1–2 | 33.33% |
| Ecko vs Clive | 3–0 | 100.00% |
| Ecko vs Fahkumram | 2–1 | 66.67% |
| Ecko vs Panda | 2–0 | 100.00% |
| Ecko vs Zafina | 0–2 | 0.00% |
| Ecko vs Armor King | 2–0 | 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.