| SiegFried vs Reina | 8–11 | 42.11% |
| SiegFried vs Hwoarang | 3–15 | 16.67% |
| SiegFried vs Steve | 7–10 | 41.18% |
| SiegFried vs Lili | 6–9 | 40.00% |
| SiegFried vs Asuka | 3–9 | 25.00% |
| SiegFried vs Lars | 4–8 | 33.33% |
| SiegFried vs Jun | 5–7 | 41.67% |
| SiegFried vs Jin | 4–4 | 50.00% |
| SiegFried vs Kazuya | 3–5 | 37.50% |
| SiegFried vs Nina | 2–6 | 25.00% |
| SiegFried vs King | 2–5 | 28.57% |
| SiegFried vs Yoshimitsu | 4–3 | 57.14% |
| SiegFried vs Xiaoyu | 3–4 | 42.86% |
| SiegFried vs Dragunov | 2–5 | 28.57% |
| SiegFried vs Alisa | 1–6 | 14.29% |
| SiegFried vs Victor | 3–4 | 42.86% |
| SiegFried vs Azucena | 2–4 | 33.33% |
| SiegFried vs Eddy | 0–6 | 0.00% |
| SiegFried vs Law | 3–2 | 60.00% |
| SiegFried vs Paul | 1–3 | 25.00% |
| SiegFried vs Shaheen | 0–4 | 0.00% |
| SiegFried vs Bryan | 0–2 | 0.00% |
| SiegFried vs Devil Jin | 0–2 | 0.00% |
| SiegFried vs Feng | 0–2 | 0.00% |
| SiegFried vs Leo | 0–2 | 0.00% |
| SiegFried vs Raven | 2–0 | 100.00% |
| SiegFried vs Lee | 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.