| Seiichi Samura vs Kazuya | 41–9 | 82.00% |
| Seiichi Samura vs Steve | 28–6 | 82.35% |
| Seiichi Samura vs Jin | 22–7 | 75.86% |
| Seiichi Samura vs Reina | 21–8 | 72.41% |
| Seiichi Samura vs King | 19–8 | 70.37% |
| Seiichi Samura vs Lee | 17–9 | 65.38% |
| Seiichi Samura vs Bryan | 15–9 | 62.50% |
| Seiichi Samura vs Dragunov | 21–0 | 100.00% |
| Seiichi Samura vs Eddy | 15–5 | 75.00% |
| Seiichi Samura vs Alisa | 14–3 | 82.35% |
| Seiichi Samura vs Leo | 11–3 | 78.57% |
| Seiichi Samura vs Law | 8–5 | 61.54% |
| Seiichi Samura vs Devil Jin | 10–3 | 76.92% |
| Seiichi Samura vs Hwoarang | 8–4 | 66.67% |
| Seiichi Samura vs Nina | 9–3 | 75.00% |
| Seiichi Samura vs Paul | 8–3 | 72.73% |
| Seiichi Samura vs Yoshimitsu | 5–6 | 45.45% |
| Seiichi Samura vs Asuka | 11–0 | 100.00% |
| Seiichi Samura vs Lili | 8–2 | 80.00% |
| Seiichi Samura vs Lars | 4–6 | 40.00% |
| Seiichi Samura vs Jun | 10–0 | 100.00% |
| Seiichi Samura vs Victor | 10–0 | 100.00% |
| Seiichi Samura vs Claudio | 8–1 | 88.89% |
| Seiichi Samura vs Jack-8 | 3–5 | 37.50% |
| Seiichi Samura vs Azucena | 6–2 | 75.00% |
| Seiichi Samura vs Leroy | 3–3 | 50.00% |
| Seiichi Samura vs Shaheen | 2–3 | 40.00% |
| Seiichi Samura vs Clive | 2–3 | 40.00% |
| Seiichi Samura vs Panda | 4–0 | 100.00% |
| Seiichi Samura vs Xiaoyu | 2–1 | 66.67% |
| Seiichi Samura vs Feng | 3–0 | 100.00% |
| Seiichi Samura vs Kuma | 2–1 | 66.67% |
| Seiichi Samura vs Raven | 2–1 | 66.67% |
| Seiichi Samura vs Lidia | 1–2 | 33.33% |
| Seiichi Samura vs Fahkumram | 0–2 | 0.00% |
| Seiichi Samura vs Heihachi | 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.