| Seifirosu vs Jin | 17–26 | 39.53% |
| Seifirosu vs Reina | 18–17 | 51.43% |
| Seifirosu vs Dragunov | 10–22 | 31.25% |
| Seifirosu vs King | 7–14 | 33.33% |
| Seifirosu vs Jun | 11–10 | 52.38% |
| Seifirosu vs Bryan | 11–8 | 57.89% |
| Seifirosu vs Lili | 9–10 | 47.37% |
| Seifirosu vs Kazuya | 10–6 | 62.50% |
| Seifirosu vs Steve | 5–11 | 31.25% |
| Seifirosu vs Devil Jin | 7–9 | 43.75% |
| Seifirosu vs Yoshimitsu | 6–8 | 42.86% |
| Seifirosu vs Jack-8 | 8–6 | 57.14% |
| Seifirosu vs Lars | 6–7 | 46.15% |
| Seifirosu vs Xiaoyu | 7–4 | 63.64% |
| Seifirosu vs Alisa | 6–5 | 54.55% |
| Seifirosu vs Victor | 7–4 | 63.64% |
| Seifirosu vs Nina | 2–6 | 25.00% |
| Seifirosu vs Paul | 4–3 | 57.14% |
| Seifirosu vs Hwoarang | 4–3 | 57.14% |
| Seifirosu vs Asuka | 3–3 | 50.00% |
| Seifirosu vs Feng | 2–4 | 33.33% |
| Seifirosu vs Claudio | 2–4 | 33.33% |
| Seifirosu vs Shaheen | 5–1 | 83.33% |
| Seifirosu vs Lee | 4–2 | 66.67% |
| Seifirosu vs Leroy | 3–3 | 50.00% |
| Seifirosu vs Law | 3–2 | 60.00% |
| Seifirosu vs Azucena | 1–4 | 20.00% |
| Seifirosu vs Eddy | 2–2 | 50.00% |
| Seifirosu vs Leo | 2–1 | 66.67% |
| Seifirosu vs Kuma | 2–1 | 66.67% |
| Seifirosu vs Panda | 0–2 | 0.00% |
| Seifirosu vs Zafina | 1–0 | 100.00% |
| Seifirosu vs Raven | 1–0 | 100.00% |
| Seifirosu 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.