| sephiroth vs King | 11–6 | 64.71% |
| sephiroth vs Kazuya | 5–9 | 35.71% |
| sephiroth vs Reina | 5–7 | 41.67% |
| sephiroth vs Yoshimitsu | 4–6 | 40.00% |
| sephiroth vs Dragunov | 3–7 | 30.00% |
| sephiroth vs Hwoarang | 5–4 | 55.56% |
| sephiroth vs Victor | 5–4 | 55.56% |
| sephiroth vs Lars | 3–5 | 37.50% |
| sephiroth vs Jun | 6–1 | 85.71% |
| sephiroth vs Steve | 2–4 | 33.33% |
| sephiroth vs Devil Jin | 1–5 | 16.67% |
| sephiroth vs Xiaoyu | 2–3 | 40.00% |
| sephiroth vs Zafina | 1–4 | 20.00% |
| sephiroth vs Jin | 2–2 | 50.00% |
| sephiroth vs Feng | 1–3 | 25.00% |
| sephiroth vs Leo | 0–4 | 0.00% |
| sephiroth vs Claudio | 1–3 | 25.00% |
| sephiroth vs Azucena | 1–3 | 25.00% |
| sephiroth vs Asuka | 2–1 | 66.67% |
| sephiroth vs Kuma | 2–1 | 66.67% |
| sephiroth vs Panda | 0–3 | 0.00% |
| sephiroth vs Law | 0–2 | 0.00% |
| sephiroth vs Bryan | 0–2 | 0.00% |
| sephiroth vs Alisa | 0–2 | 0.00% |
| sephiroth vs Eddy | 2–0 | 100.00% |
| sephiroth vs Paul | 0–1 | 0.00% |
| sephiroth vs Nina | 0–1 | 0.00% |
| sephiroth vs Leroy | 0–1 | 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.