| Siegfried vs Kazuya | 18–12 | 60.00% |
| Siegfried vs Bryan | 18–11 | 62.07% |
| Siegfried vs King | 17–11 | 60.71% |
| Siegfried vs Law | 18–8 | 69.23% |
| Siegfried vs Jin | 18–7 | 72.00% |
| Siegfried vs Heihachi | 14–11 | 56.00% |
| Siegfried vs Paul | 13–10 | 56.52% |
| Siegfried vs Steve | 14–9 | 60.87% |
| Siegfried vs Anna | 14–9 | 60.87% |
| Siegfried vs Armor King | 11–11 | 50.00% |
| Siegfried vs Lili | 9–8 | 52.94% |
| Siegfried vs Dragunov | 10–4 | 71.43% |
| Siegfried vs Jack-8 | 8–4 | 66.67% |
| Siegfried vs Miary Zo | 4–8 | 33.33% |
| Siegfried vs Yoshimitsu | 7–4 | 63.64% |
| Siegfried vs Devil Jin | 8–3 | 72.73% |
| Siegfried vs Lee | 9–2 | 81.82% |
| Siegfried vs Xiaoyu | 10–0 | 100.00% |
| Siegfried vs Alisa | 9–1 | 90.00% |
| Siegfried vs Victor | 8–1 | 88.89% |
| Siegfried vs Fahkumram | 6–3 | 66.67% |
| Siegfried vs Jun | 4–4 | 50.00% |
| Siegfried vs Reina | 7–1 | 87.50% |
| Siegfried vs Hwoarang | 6–1 | 85.71% |
| Siegfried vs Asuka | 6–0 | 100.00% |
| Siegfried vs Claudio | 4–2 | 66.67% |
| Siegfried vs Nina | 4–2 | 66.67% |
| Siegfried vs Azucena | 5–1 | 83.33% |
| Siegfried vs Lars | 2–2 | 50.00% |
| Siegfried vs Kuma | 0–4 | 0.00% |
| Siegfried vs Leroy | 1–3 | 25.00% |
| Siegfried vs Lidia | 0–4 | 0.00% |
| Siegfried vs Clive | 2–2 | 50.00% |
| Siegfried vs Leo | 2–1 | 66.67% |
| Siegfried vs Zafina | 1–2 | 33.33% |
| Siegfried vs Feng | 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.