| Seik vs Steve | 3–7 | 30.00% |
| Seik vs Jin | 3–5 | 37.50% |
| Seik vs Dragunov | 3–4 | 42.86% |
| Seik vs Devil Jin | 4–2 | 66.67% |
| Seik vs Alisa | 3–3 | 50.00% |
| Seik vs Yoshimitsu | 5–0 | 100.00% |
| Seik vs Eddy | 2–3 | 40.00% |
| Seik vs Law | 2–2 | 50.00% |
| Seik vs Lili | 4–0 | 100.00% |
| Seik vs Jun | 2–2 | 50.00% |
| Seik vs Reina | 3–1 | 75.00% |
| Seik vs Paul | 3–0 | 100.00% |
| Seik vs King | 1–2 | 33.33% |
| Seik vs Jack-8 | 1–2 | 33.33% |
| Seik vs Claudio | 2–1 | 66.67% |
| Seik vs Lee | 1–2 | 33.33% |
| Seik vs Leroy | 1–2 | 33.33% |
| Seik vs Hwoarang | 2–0 | 100.00% |
| Seik vs Xiaoyu | 0–2 | 0.00% |
| Seik vs Bryan | 0–2 | 0.00% |
| Seik vs Asuka | 2–0 | 100.00% |
| Seik vs Victor | 2–0 | 100.00% |
| Seik vs Kazuya | 0–1 | 0.00% |
| Seik vs Shaheen | 0–1 | 0.00% |
| Seik vs Kuma | 0–1 | 0.00% |
| Seik vs Azucena | 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.