| Seiya vs King | 14–7 | 66.67% |
| Seiya vs Lili | 9–7 | 56.25% |
| Seiya vs Bryan | 6–8 | 42.86% |
| Seiya vs Devil Jin | 11–1 | 91.67% |
| Seiya vs Reina | 9–3 | 75.00% |
| Seiya vs Kazuya | 6–4 | 60.00% |
| Seiya vs Dragunov | 2–8 | 20.00% |
| Seiya vs Victor | 7–3 | 70.00% |
| Seiya vs Paul | 7–2 | 77.78% |
| Seiya vs Lars | 6–3 | 66.67% |
| Seiya vs Jin | 6–2 | 75.00% |
| Seiya vs Asuka | 4–4 | 50.00% |
| Seiya vs Law | 2–4 | 33.33% |
| Seiya vs Steve | 2–4 | 33.33% |
| Seiya vs Feng | 4–2 | 66.67% |
| Seiya vs Alisa | 4–2 | 66.67% |
| Seiya vs Jun | 3–2 | 60.00% |
| Seiya vs Azucena | 3–2 | 60.00% |
| Seiya vs Eddy | 4–1 | 80.00% |
| Seiya vs Xiaoyu | 2–2 | 50.00% |
| Seiya vs Leo | 2–2 | 50.00% |
| Seiya vs Zafina | 0–4 | 0.00% |
| Seiya vs Jack-8 | 2–1 | 66.67% |
| Seiya vs Nina | 0–3 | 0.00% |
| Seiya vs Clive | 2–1 | 66.67% |
| Seiya vs Hwoarang | 2–0 | 100.00% |
| Seiya vs Heihachi | 0–2 | 0.00% |
| Seiya vs Lee | 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.