| Ekko_ vs Kazuya | 180–167 | 51.87% |
| Ekko_ vs Reina | 165–180 | 47.83% |
| Ekko_ vs Bryan | 125–141 | 46.99% |
| Ekko_ vs King | 132–129 | 50.57% |
| Ekko_ vs Jin | 92–130 | 41.44% |
| Ekko_ vs Steve | 120–93 | 56.34% |
| Ekko_ vs Hwoarang | 61–122 | 33.33% |
| Ekko_ vs Lili | 77–94 | 45.03% |
| Ekko_ vs Heihachi | 68–85 | 44.44% |
| Ekko_ vs Dragunov | 68–82 | 45.33% |
| Ekko_ vs Yoshimitsu | 68–75 | 47.55% |
| Ekko_ vs Paul | 77–62 | 55.40% |
| Ekko_ vs Lee | 76–63 | 54.68% |
| Ekko_ vs Azucena | 60–53 | 53.10% |
| Ekko_ vs Jun | 58–46 | 55.77% |
| Ekko_ vs Law | 48–49 | 49.48% |
| Ekko_ vs Xiaoyu | 45–48 | 48.39% |
| Ekko_ vs Asuka | 49–44 | 52.69% |
| Ekko_ vs Victor | 38–50 | 43.18% |
| Ekko_ vs Devil Jin | 45–39 | 53.57% |
| Ekko_ vs Nina | 34–39 | 46.58% |
| Ekko_ vs Lidia | 29–44 | 39.73% |
| Ekko_ vs Raven | 34–36 | 48.57% |
| Ekko_ vs Eddy | 25–42 | 37.31% |
| Ekko_ vs Feng | 33–30 | 52.38% |
| Ekko_ vs Leo | 30–32 | 48.39% |
| Ekko_ vs Fahkumram | 28–32 | 46.67% |
| Ekko_ vs Jack-8 | 15–44 | 25.42% |
| Ekko_ vs Lars | 25–31 | 44.64% |
| Ekko_ vs Alisa | 25–30 | 45.45% |
| Ekko_ vs Kuma | 19–30 | 38.78% |
| Ekko_ vs Armor King | 14–34 | 29.17% |
| Ekko_ vs Anna | 18–26 | 40.91% |
| Ekko_ vs Shaheen | 17–26 | 39.53% |
| Ekko_ vs Claudio | 19–23 | 45.24% |
| Ekko_ vs Leroy | 16–20 | 44.44% |
| Ekko_ vs Zafina | 21–14 | 60.00% |
| Ekko_ vs Clive | 14–20 | 41.18% |
| Ekko_ vs Panda | 6–9 | 40.00% |
| Ekko_ vs Miary Zo | 3–5 | 37.50% |
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.