| Echidna vs Kazuya | 76–59 | 56.30% |
| Echidna vs Heihachi | 62–59 | 51.24% |
| Echidna vs King | 64–54 | 54.24% |
| Echidna vs Jin | 57–61 | 48.31% |
| Echidna vs Bryan | 63–47 | 57.27% |
| Echidna vs Reina | 70–30 | 70.00% |
| Echidna vs Dragunov | 58–41 | 58.59% |
| Echidna vs Steve | 44–40 | 52.38% |
| Echidna vs Paul | 40–36 | 52.63% |
| Echidna vs Yoshimitsu | 40–29 | 57.97% |
| Echidna vs Azucena | 36–21 | 63.16% |
| Echidna vs Lili | 30–26 | 53.57% |
| Echidna vs Hwoarang | 23–30 | 43.40% |
| Echidna vs Clive | 33–20 | 62.26% |
| Echidna vs Nina | 25–25 | 50.00% |
| Echidna vs Law | 25–18 | 58.14% |
| Echidna vs Devil Jin | 22–20 | 52.38% |
| Echidna vs Asuka | 20–19 | 51.28% |
| Echidna vs Lars | 23–13 | 63.89% |
| Echidna vs Jun | 22–14 | 61.11% |
| Echidna vs Lidia | 19–16 | 54.29% |
| Echidna vs Victor | 15–17 | 46.88% |
| Echidna vs Lee | 17–13 | 56.67% |
| Echidna vs Feng | 15–14 | 51.72% |
| Echidna vs Xiaoyu | 12–8 | 60.00% |
| Echidna vs Alisa | 10–10 | 50.00% |
| Echidna vs Eddy | 6–14 | 30.00% |
| Echidna vs Raven | 7–10 | 41.18% |
| Echidna vs Leroy | 13–3 | 81.25% |
| Echidna vs Claudio | 7–8 | 46.67% |
| Echidna vs Shaheen | 11–4 | 73.33% |
| Echidna vs Leo | 8–5 | 61.54% |
| Echidna vs Zafina | 4–8 | 33.33% |
| Echidna vs Jack-8 | 5–5 | 50.00% |
| Echidna vs Kuma | 3–5 | 37.50% |
| Echidna vs Panda | 3–2 | 60.00% |
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.