| Seki vs King | 6–4 | 60.00% |
| Seki vs Heihachi | 3–7 | 30.00% |
| Seki vs Reina | 4–5 | 44.44% |
| Seki vs Eddy | 3–5 | 37.50% |
| Seki vs Jin | 1–7 | 12.50% |
| Seki vs Lili | 1–7 | 12.50% |
| Seki vs Law | 3–4 | 42.86% |
| Seki vs Kazuya | 2–5 | 28.57% |
| Seki vs Nina | 1–5 | 16.67% |
| Seki vs Alisa | 2–2 | 50.00% |
| Seki vs Victor | 2–2 | 50.00% |
| Seki vs Bryan | 2–1 | 66.67% |
| Seki vs Lee | 2–1 | 66.67% |
| Seki vs Azucena | 1–2 | 33.33% |
| Seki vs Steve | 1–2 | 33.33% |
| Seki vs Feng | 1–2 | 33.33% |
| Seki vs Claudio | 2–1 | 66.67% |
| Seki vs Yoshimitsu | 0–2 | 0.00% |
| Seki vs Leo | 0–2 | 0.00% |
| Seki vs Hwoarang | 0–2 | 0.00% |
| Seki vs Xiaoyu | 2–0 | 100.00% |
| Seki vs Raven | 0–2 | 0.00% |
| Seki vs Lidia | 2–0 | 100.00% |
| Seki vs Dragunov | 0–1 | 0.00% |
| Seki vs Paul | 1–0 | 100.00% |
| Seki vs Asuka | 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.