| Seppu vs Heihachi | 15–6 | 71.43% |
| Seppu vs Hwoarang | 12–6 | 66.67% |
| Seppu vs Steve | 9–7 | 56.25% |
| Seppu vs Jun | 9–6 | 60.00% |
| Seppu vs Law | 8–6 | 57.14% |
| Seppu vs Kazuya | 8–6 | 57.14% |
| Seppu vs Jin | 5–6 | 45.45% |
| Seppu vs Paul | 4–6 | 40.00% |
| Seppu vs Bryan | 6–4 | 60.00% |
| Seppu vs Devil Jin | 6–3 | 66.67% |
| Seppu vs Eddy | 7–2 | 77.78% |
| Seppu vs Asuka | 5–2 | 71.43% |
| Seppu vs Nina | 7–0 | 100.00% |
| Seppu vs Reina | 5–1 | 83.33% |
| Seppu vs King | 1–4 | 20.00% |
| Seppu vs Claudio | 1–4 | 20.00% |
| Seppu vs Lee | 2–3 | 40.00% |
| Seppu vs Raven | 3–2 | 60.00% |
| Seppu vs Yoshimitsu | 2–2 | 50.00% |
| Seppu vs Lili | 2–2 | 50.00% |
| Seppu vs Dragunov | 3–1 | 75.00% |
| Seppu vs Lars | 2–1 | 66.67% |
| Seppu vs Leroy | 1–2 | 33.33% |
| Seppu vs Xiaoyu | 2–0 | 100.00% |
| Seppu vs Feng | 2–0 | 100.00% |
| Seppu vs Leo | 0–2 | 0.00% |
| Seppu vs Kuma | 0–2 | 0.00% |
| Seppu vs Zafina | 2–0 | 100.00% |
| Seppu vs Azucena | 0–1 | 0.00% |
| Seppu vs Lidia | 1–0 | 100.00% |
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.