| Siegfied vs King | 19–13 | 59.38% |
| Siegfied vs Jin | 13–15 | 46.43% |
| Siegfied vs Kazuya | 14–6 | 70.00% |
| Siegfied vs Clive | 10–5 | 66.67% |
| Siegfied vs Steve | 8–6 | 57.14% |
| Siegfied vs Reina | 6–7 | 46.15% |
| Siegfied vs Law | 8–4 | 66.67% |
| Siegfied vs Lee | 5–5 | 50.00% |
| Siegfied vs Asuka | 3–6 | 33.33% |
| Siegfied vs Lili | 4–4 | 50.00% |
| Siegfied vs Lidia | 5–3 | 62.50% |
| Siegfied vs Eddy | 6–1 | 85.71% |
| Siegfied vs Yoshimitsu | 0–6 | 0.00% |
| Siegfied vs Hwoarang | 5–1 | 83.33% |
| Siegfied vs Lars | 6–0 | 100.00% |
| Siegfied vs Azucena | 4–2 | 66.67% |
| Siegfied vs Heihachi | 3–3 | 50.00% |
| Siegfied vs Jun | 5–0 | 100.00% |
| Siegfied vs Victor | 3–2 | 60.00% |
| Siegfied vs Paul | 2–2 | 50.00% |
| Siegfied vs Jack-8 | 2–2 | 50.00% |
| Siegfied vs Leo | 2–2 | 50.00% |
| Siegfied vs Xiaoyu | 1–2 | 33.33% |
| Siegfied vs Bryan | 2–1 | 66.67% |
| Siegfied vs Dragunov | 2–1 | 66.67% |
| Siegfied vs Claudio | 0–3 | 0.00% |
| Siegfied vs Nina | 2–1 | 66.67% |
| Siegfied vs Leroy | 2–1 | 66.67% |
| Siegfied vs Anna | 1–2 | 33.33% |
| Siegfied vs Fahkumram | 1–2 | 33.33% |
| Siegfied vs Devil Jin | 0–2 | 0.00% |
| Siegfied vs Shaheen | 0–2 | 0.00% |
| Siegfied vs Kuma | 2–0 | 100.00% |
| Siegfied vs Panda | 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.