| Seycun vs Kazuya | 16–12 | 57.14% |
| Seycun vs King | 15–9 | 62.50% |
| Seycun vs Armor King | 12–7 | 63.16% |
| Seycun vs Jin | 9–9 | 50.00% |
| Seycun vs Dragunov | 10–7 | 58.82% |
| Seycun vs Lidia | 14–3 | 82.35% |
| Seycun vs Hwoarang | 7–7 | 50.00% |
| Seycun vs Lili | 12–2 | 85.71% |
| Seycun vs Bryan | 5–8 | 38.46% |
| Seycun vs Steve | 11–2 | 84.62% |
| Seycun vs Fahkumram | 6–7 | 46.15% |
| Seycun vs Yoshimitsu | 5–7 | 41.67% |
| Seycun vs Devil Jin | 7–5 | 58.33% |
| Seycun vs Xiaoyu | 4–6 | 40.00% |
| Seycun vs Lars | 6–4 | 60.00% |
| Seycun vs Heihachi | 4–6 | 40.00% |
| Seycun vs Paul | 7–2 | 77.78% |
| Seycun vs Law | 6–3 | 66.67% |
| Seycun vs Nina | 6–3 | 66.67% |
| Seycun vs Victor | 5–4 | 55.56% |
| Seycun vs Azucena | 3–3 | 50.00% |
| Seycun vs Feng | 3–2 | 60.00% |
| Seycun vs Leo | 1–4 | 20.00% |
| Seycun vs Lee | 5–0 | 100.00% |
| Seycun vs Zafina | 3–2 | 60.00% |
| Seycun vs Anna | 3–2 | 60.00% |
| Seycun vs Miary Zo | 4–1 | 80.00% |
| Seycun vs Alisa | 2–2 | 50.00% |
| Seycun vs Jun | 2–2 | 50.00% |
| Seycun vs Asuka | 1–2 | 33.33% |
| Seycun vs Shaheen | 2–1 | 66.67% |
| Seycun vs Leroy | 3–0 | 100.00% |
| Seycun vs Reina | 1–2 | 33.33% |
| Seycun vs Eddy | 1–2 | 33.33% |
| Seycun vs Claudio | 2–0 | 100.00% |
| Seycun vs Raven | 2–0 | 100.00% |
| Seycun vs Jack-8 | 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.