| Eithné vs Reina | 71–44 | 61.74% |
| Eithné vs Kazuya | 36–57 | 38.71% |
| Eithné vs Lidia | 38–32 | 54.29% |
| Eithné vs Heihachi | 29–29 | 50.00% |
| Eithné vs King | 18–39 | 31.58% |
| Eithné vs Jin | 17–35 | 32.69% |
| Eithné vs Steve | 22–25–1 | 46.81% |
| Eithné vs Hwoarang | 19–27 | 41.30% |
| Eithné vs Jun | 24–20 | 54.55% |
| Eithné vs Lili | 15–26 | 36.59% |
| Eithné vs Yoshimitsu | 17–21 | 44.74% |
| Eithné vs Asuka | 20–14 | 58.82% |
| Eithné vs Dragunov | 10–24 | 29.41% |
| Eithné vs Nina | 16–18 | 47.06% |
| Eithné vs Azucena | 12–21 | 36.36% |
| Eithné vs Eddy | 11–19 | 36.67% |
| Eithné vs Lee | 11–18 | 37.93% |
| Eithné vs Law | 13–15 | 46.43% |
| Eithné vs Xiaoyu | 10–18 | 35.71% |
| Eithné vs Bryan | 8–19 | 29.63% |
| Eithné vs Lars | 13–12 | 52.00% |
| Eithné vs Paul | 7–17 | 29.17% |
| Eithné vs Alisa | 10–12 | 45.45% |
| Eithné vs Claudio | 8–13 | 38.10% |
| Eithné vs Feng | 7–12 | 36.84% |
| Eithné vs Leroy | 10–8 | 55.56% |
| Eithné vs Jack-8 | 7–8 | 46.67% |
| Eithné vs Devil Jin | 5–8 | 38.46% |
| Eithné vs Leo | 5–8 | 38.46% |
| Eithné vs Kuma | 6–7 | 46.15% |
| Eithné vs Victor | 6–7 | 46.15% |
| Eithné vs Shaheen | 10–2 | 83.33% |
| Eithné vs Clive | 5–4 | 55.56% |
| Eithné vs Raven | 1–6 | 14.29% |
| Eithné vs Zafina | 1–5 | 16.67% |
| Eithné vs Panda | 2–1 | 66.67% |
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.