| Seojin vs Kazuya | 98–110 | 47.12% |
| Seojin vs Jin | 94–80 | 54.02% |
| Seojin vs Hwoarang | 84–78 | 51.85% |
| Seojin vs Reina | 91–61 | 59.87% |
| Seojin vs King | 82–60 | 57.75% |
| Seojin vs Yoshimitsu | 65–75 | 46.43% |
| Seojin vs Bryan | 53–71 | 42.74% |
| Seojin vs Paul | 69–51 | 57.50% |
| Seojin vs Law | 65–52 | 55.56% |
| Seojin vs Lili | 44–65 | 40.37% |
| Seojin vs Dragunov | 55–38 | 59.14% |
| Seojin vs Heihachi | 47–35 | 57.32% |
| Seojin vs Asuka | 32–49 | 39.51% |
| Seojin vs Devil Jin | 50–30 | 62.50% |
| Seojin vs Victor | 42–36 | 53.85% |
| Seojin vs Lee | 33–41 | 44.59% |
| Seojin vs Steve | 25–48 | 34.25% |
| Seojin vs Lars | 35–37 | 48.61% |
| Seojin vs Azucena | 43–28 | 60.56% |
| Seojin vs Alisa | 41–28 | 59.42% |
| Seojin vs Jun | 44–22 | 66.67% |
| Seojin vs Eddy | 23–34 | 40.35% |
| Seojin vs Nina | 28–28 | 50.00% |
| Seojin vs Feng | 28–27 | 50.91% |
| Seojin vs Xiaoyu | 28–25 | 52.83% |
| Seojin vs Claudio | 28–20 | 58.33% |
| Seojin vs Leroy | 30–17 | 63.83% |
| Seojin vs Raven | 19–26 | 42.22% |
| Seojin vs Leo | 10–26 | 27.78% |
| Seojin vs Lidia | 12–19–1 | 38.71% |
| Seojin vs Clive | 13–15 | 46.43% |
| Seojin vs Jack-8 | 13–14 | 48.15% |
| Seojin vs Kuma | 14–13 | 51.85% |
| Seojin vs Zafina | 9–9 | 50.00% |
| Seojin vs Panda | 4–3 | 57.14% |
| Seojin vs Shaheen | 4–0 | 100.00% |
| Seojin vs Armor King | 0–1 | 0.00% |
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.