| Siegfried vs Kazuya | 117–123 | 48.75% |
| Siegfried vs Jin | 138–84 | 62.16% |
| Siegfried vs King | 83–82 | 50.30% |
| Siegfried vs Hwoarang | 88–60 | 59.46% |
| Siegfried vs Bryan | 75–72 | 51.02% |
| Siegfried vs Law | 80–51 | 61.07% |
| Siegfried vs Yoshimitsu | 78–34 | 69.64% |
| Siegfried vs Steve | 55–53 | 50.93% |
| Siegfried vs Paul | 53–53 | 50.00% |
| Siegfried vs Devil Jin | 54–50 | 51.92% |
| Siegfried vs Heihachi | 60–42 | 58.82% |
| Siegfried vs Feng | 51–47 | 52.04% |
| Siegfried vs Reina | 57–41 | 58.16% |
| Siegfried vs Lars | 54–40 | 57.45% |
| Siegfried vs Lili | 43–48 | 47.25% |
| Siegfried vs Eddy | 51–40 | 56.04% |
| Siegfried vs Fahkumram | 43–47 | 47.78% |
| Siegfried vs Jun | 46–41 | 52.87% |
| Siegfried vs Lee | 37–49 | 43.02% |
| Siegfried vs Dragunov | 42–41 | 50.60% |
| Siegfried vs Alisa | 31–42 | 42.47% |
| Siegfried vs Nina | 35–34 | 50.72% |
| Siegfried vs Asuka | 29–37 | 43.94% |
| Siegfried vs Victor | 39–26 | 60.00% |
| Siegfried vs Xiaoyu | 42–19 | 68.85% |
| Siegfried vs Azucena | 32–16 | 66.67% |
| Siegfried vs Lidia | 21–23 | 47.73% |
| Siegfried vs Jack-8 | 16–26 | 38.10% |
| Siegfried vs Raven | 25–17 | 59.52% |
| Siegfried vs Leo | 22–16 | 57.89% |
| Siegfried vs Leroy | 19–19 | 50.00% |
| Siegfried vs Zafina | 16–16 | 50.00% |
| Siegfried vs Anna | 13–19 | 40.62% |
| Siegfried vs Claudio | 13–18 | 41.94% |
| Siegfried vs Armor King | 12–8 | 60.00% |
| Siegfried vs Kuma | 8–11 | 42.11% |
| Siegfried vs Clive | 11–8 | 57.89% |
| Siegfried vs Shaheen | 8–9 | 47.06% |
| Siegfried vs Panda | 10–6 | 62.50% |
| Siegfried vs Miary Zo | 7–9 | 43.75% |
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.