| seiy vs King | 18–19 | 48.65% |
| seiy vs Reina | 22–9 | 70.97% |
| seiy vs Kazuya | 18–11 | 62.07% |
| seiy vs Dragunov | 11–18 | 37.93% |
| seiy vs Lili | 14–8 | 63.64% |
| seiy vs Eddy | 9–13 | 40.91% |
| seiy vs Paul | 7–14 | 33.33% |
| seiy vs Yoshimitsu | 9–11 | 45.00% |
| seiy vs Jun | 12–8 | 60.00% |
| seiy vs Law | 5–14 | 26.32% |
| seiy vs Steve | 10–9 | 52.63% |
| seiy vs Jin | 8–10 | 44.44% |
| seiy vs Victor | 8–9 | 47.06% |
| seiy vs Asuka | 7–8 | 46.67% |
| seiy vs Nina | 8–7 | 53.33% |
| seiy vs Hwoarang | 4–8 | 33.33% |
| seiy vs Bryan | 3–9 | 25.00% |
| seiy vs Leo | 5–7 | 41.67% |
| seiy vs Leroy | 4–8 | 33.33% |
| seiy vs Azucena | 4–7 | 36.36% |
| seiy vs Alisa | 6–4 | 60.00% |
| seiy vs Feng | 1–7 | 12.50% |
| seiy vs Shaheen | 4–3 | 57.14% |
| seiy vs Xiaoyu | 0–6 | 0.00% |
| seiy vs Lars | 4–2 | 66.67% |
| seiy vs Claudio | 4–1 | 80.00% |
| seiy vs Lee | 2–3 | 40.00% |
| seiy vs Jack-8 | 0–4 | 0.00% |
| seiy vs Devil Jin | 2–2 | 50.00% |
| seiy vs Kuma | 1–3 | 25.00% |
| seiy vs Zafina | 2–2 | 50.00% |
| seiy vs Raven | 0–4 | 0.00% |
| seiy vs Panda | 2–1 | 66.67% |
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.