| Sejin vs King | 16–6 | 72.73% |
| Sejin vs Hwoarang | 10–6 | 62.50% |
| Sejin vs Reina | 6–8 | 42.86% |
| Sejin vs Law | 7–5 | 58.33% |
| Sejin vs Lili | 7–5 | 58.33% |
| Sejin vs Victor | 8–3 | 72.73% |
| Sejin vs Steve | 6–4 | 60.00% |
| Sejin vs Kazuya | 6–2 | 75.00% |
| Sejin vs Claudio | 7–1 | 87.50% |
| Sejin vs Armor King | 5–3 | 62.50% |
| Sejin vs Yoshimitsu | 2–5 | 28.57% |
| Sejin vs Dragunov | 6–0 | 100.00% |
| Sejin vs Nina | 4–2 | 66.67% |
| Sejin vs Jun | 5–1 | 83.33% |
| Sejin vs Paul | 3–2 | 60.00% |
| Sejin vs Xiaoyu | 2–3 | 40.00% |
| Sejin vs Jin | 2–3 | 40.00% |
| Sejin vs Asuka | 3–2 | 60.00% |
| Sejin vs Feng | 4–1 | 80.00% |
| Sejin vs Alisa | 2–3 | 40.00% |
| Sejin vs Azucena | 3–2 | 60.00% |
| Sejin vs Eddy | 1–4 | 20.00% |
| Sejin vs Devil Jin | 2–2 | 50.00% |
| Sejin vs Bryan | 1–2 | 33.33% |
| Sejin vs Kuma | 2–1 | 66.67% |
| Sejin vs Shaheen | 2–0 | 100.00% |
| Sejin vs Lee | 2–0 | 100.00% |
| Sejin vs Leo | 0–1 | 0.00% |
| Sejin vs Lars | 1–0 | 100.00% |
| Sejin vs Zafina | 0–1 | 0.00% |
| Sejin vs Leroy | 1–0 | 100.00% |
| Sejin vs Raven | 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.