| seiy vs King | 21–20 | 51.22% |
| seiy vs Kazuya | 23–17 | 57.50% |
| seiy vs Dragunov | 17–23 | 42.50% |
| seiy vs Reina | 27–11 | 71.05% |
| seiy vs Lili | 19–11 | 63.33% |
| seiy vs Jun | 16–10 | 61.54% |
| seiy vs Eddy | 10–15 | 40.00% |
| seiy vs Jin | 12–11 | 52.17% |
| seiy vs Paul | 7–15 | 31.82% |
| seiy vs Yoshimitsu | 11–11 | 50.00% |
| seiy vs Law | 5–15 | 25.00% |
| seiy vs Victor | 9–11 | 45.00% |
| seiy vs Steve | 10–9 | 52.63% |
| seiy vs Hwoarang | 7–11 | 38.89% |
| seiy vs Asuka | 7–10 | 41.18% |
| seiy vs Azucena | 9–8 | 52.94% |
| seiy vs Nina | 8–8 | 50.00% |
| seiy vs Bryan | 3–11 | 21.43% |
| seiy vs Feng | 4–9 | 30.77% |
| seiy vs Leroy | 4–9 | 30.77% |
| seiy vs Leo | 5–7 | 41.67% |
| seiy vs Devil Jin | 6–5 | 54.55% |
| seiy vs Alisa | 6–4 | 60.00% |
| seiy vs Claudio | 8–1 | 88.89% |
| seiy vs Xiaoyu | 1–6 | 14.29% |
| seiy vs Shaheen | 4–3 | 57.14% |
| seiy vs Lars | 4–2 | 66.67% |
| seiy vs Zafina | 2–4 | 33.33% |
| seiy vs Fahkumram | 3–3 | 50.00% |
| seiy vs Lee | 2–3 | 40.00% |
| seiy vs Kuma | 1–4 | 20.00% |
| seiy vs Jack-8 | 0–4 | 0.00% |
| seiy vs Raven | 0–4 | 0.00% |
| seiy vs Panda | 2–1 | 66.67% |
| seiy vs Heihachi | 2–1 | 66.67% |
| seiy vs Lidia | 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.