| Seiyaaaaa vs Jin | 24–25 | 48.98% |
| Seiyaaaaa vs Kazuya | 20–22 | 47.62% |
| Seiyaaaaa vs King | 28–8 | 77.78% |
| Seiyaaaaa vs Hwoarang | 13–16 | 44.83% |
| Seiyaaaaa vs Bryan | 15–8 | 65.22% |
| Seiyaaaaa vs Law | 11–11 | 50.00% |
| Seiyaaaaa vs Jun | 11–11 | 50.00% |
| Seiyaaaaa vs Yoshimitsu | 14–6 | 70.00% |
| Seiyaaaaa vs Reina | 7–13 | 35.00% |
| Seiyaaaaa vs Lili | 10–9 | 52.63% |
| Seiyaaaaa vs Devil Jin | 7–11 | 38.89% |
| Seiyaaaaa vs Feng | 8–9 | 47.06% |
| Seiyaaaaa vs Alisa | 8–6 | 57.14% |
| Seiyaaaaa vs Dragunov | 8–5 | 61.54% |
| Seiyaaaaa vs Lars | 9–4 | 69.23% |
| Seiyaaaaa vs Lee | 6–7 | 46.15% |
| Seiyaaaaa vs Paul | 4–7 | 36.36% |
| Seiyaaaaa vs Steve | 3–8 | 27.27% |
| Seiyaaaaa vs Azucena | 8–3 | 72.73% |
| Seiyaaaaa vs Xiaoyu | 3–7 | 30.00% |
| Seiyaaaaa vs Raven | 5–4 | 55.56% |
| Seiyaaaaa vs Lidia | 6–2 | 75.00% |
| Seiyaaaaa vs Nina | 2–5 | 28.57% |
| Seiyaaaaa vs Heihachi | 3–4 | 42.86% |
| Seiyaaaaa vs Leroy | 4–2 | 66.67% |
| Seiyaaaaa vs Leo | 3–2 | 60.00% |
| Seiyaaaaa vs Claudio | 2–3 | 40.00% |
| Seiyaaaaa vs Shaheen | 4–1 | 80.00% |
| Seiyaaaaa vs Zafina | 1–4 | 20.00% |
| Seiyaaaaa vs Asuka | 2–2 | 50.00% |
| Seiyaaaaa vs Victor | 2–2 | 50.00% |
| Seiyaaaaa vs Jack-8 | 1–2 | 33.33% |
| Seiyaaaaa vs Kuma | 1–2 | 33.33% |
| Seiyaaaaa vs Eddy | 1–2 | 33.33% |
| Seiyaaaaa vs Panda | 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.