| Seijuu vs Kazuya | 74–68 | 52.11% |
| Seijuu vs Jin | 42–53 | 44.21% |
| Seijuu vs Bryan | 45–42 | 51.72% |
| Seijuu vs King | 35–47 | 42.68% |
| Seijuu vs Reina | 45–36 | 55.56% |
| Seijuu vs Heihachi | 34–40 | 45.95% |
| Seijuu vs Hwoarang | 33–37 | 47.14% |
| Seijuu vs Steve | 35–29 | 54.69% |
| Seijuu vs Dragunov | 34–21 | 61.82% |
| Seijuu vs Law | 29–22 | 56.86% |
| Seijuu vs Paul | 21–27 | 43.75% |
| Seijuu vs Asuka | 26–21 | 55.32% |
| Seijuu vs Lili | 27–18 | 60.00% |
| Seijuu vs Yoshimitsu | 15–29 | 34.09% |
| Seijuu vs Victor | 20–18 | 52.63% |
| Seijuu vs Jun | 20–17 | 54.05% |
| Seijuu vs Eddy | 14–19 | 42.42% |
| Seijuu vs Miary Zo | 17–14 | 54.84% |
| Seijuu vs Lars | 16–13 | 55.17% |
| Seijuu vs Alisa | 10–18 | 35.71% |
| Seijuu vs Feng | 16–11 | 59.26% |
| Seijuu vs Lee | 12–14 | 46.15% |
| Seijuu vs Devil Jin | 13–12 | 52.00% |
| Seijuu vs Lidia | 12–10 | 54.55% |
| Seijuu vs Azucena | 12–7 | 63.16% |
| Seijuu vs Armor King | 9–10 | 47.37% |
| Seijuu vs Xiaoyu | 8–9 | 47.06% |
| Seijuu vs Jack-8 | 6–10 | 37.50% |
| Seijuu vs Clive | 11–4 | 73.33% |
| Seijuu vs Nina | 8–6 | 57.14% |
| Seijuu vs Raven | 8–5 | 61.54% |
| Seijuu vs Claudio | 4–7 | 36.36% |
| Seijuu vs Anna | 5–5 | 50.00% |
| Seijuu vs Fahkumram | 6–4 | 60.00% |
| Seijuu vs Kuma | 1–8 | 11.11% |
| Seijuu vs Zafina | 3–5 | 37.50% |
| Seijuu vs Leroy | 4–4 | 50.00% |
| Seijuu vs Shaheen | 2–5 | 28.57% |
| Seijuu vs Leo | 3–3 | 50.00% |
| Seijuu vs Panda | 1–3 | 25.00% |
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.