| Ephemeral vs King | 32–27 | 54.24% |
| Ephemeral vs Kazuya | 10–18 | 35.71% |
| Ephemeral vs Law | 11–12 | 47.83% |
| Ephemeral vs Steve | 8–14 | 36.36% |
| Ephemeral vs Hwoarang | 5–14 | 26.32% |
| Ephemeral vs Jun | 11–6 | 64.71% |
| Ephemeral vs Clive | 11–6 | 64.71% |
| Ephemeral vs Reina | 8–8 | 50.00% |
| Ephemeral vs Victor | 9–7 | 56.25% |
| Ephemeral vs Bryan | 6–9 | 40.00% |
| Ephemeral vs Dragunov | 4–11 | 26.67% |
| Ephemeral vs Jin | 10–4 | 71.43% |
| Ephemeral vs Jack-8 | 7–6 | 53.85% |
| Ephemeral vs Leroy | 7–5 | 58.33% |
| Ephemeral vs Azucena | 4–8 | 33.33% |
| Ephemeral vs Asuka | 8–3 | 72.73% |
| Ephemeral vs Heihachi | 6–5 | 54.55% |
| Ephemeral vs Devil Jin | 4–6 | 40.00% |
| Ephemeral vs Leo | 4–6 | 40.00% |
| Ephemeral vs Lars | 1–9 | 10.00% |
| Ephemeral vs Nina | 6–4 | 60.00% |
| Ephemeral vs Lidia | 6–4 | 60.00% |
| Ephemeral vs Raven | 7–2 | 77.78% |
| Ephemeral vs Eddy | 5–4 | 55.56% |
| Ephemeral vs Lili | 3–5 | 37.50% |
| Ephemeral vs Claudio | 4–4 | 50.00% |
| Ephemeral vs Kuma | 4–3 | 57.14% |
| Ephemeral vs Feng | 2–4 | 33.33% |
| Ephemeral vs Anna | 3–2 | 60.00% |
| Ephemeral vs Paul | 3–1 | 75.00% |
| Ephemeral vs Yoshimitsu | 3–1 | 75.00% |
| Ephemeral vs Xiaoyu | 1–3 | 25.00% |
| Ephemeral vs Alisa | 0–3 | 0.00% |
| Ephemeral vs Lee | 0–3 | 0.00% |
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.