| Sieg vs Kazuya | 13–8 | 61.90% |
| Sieg vs Hwoarang | 10–7 | 58.82% |
| Sieg vs Steve | 5–8 | 38.46% |
| Sieg vs Victor | 5–5 | 50.00% |
| Sieg vs Heihachi | 3–7 | 30.00% |
| Sieg vs King | 7–2 | 77.78% |
| Sieg vs Reina | 6–3 | 66.67% |
| Sieg vs Bryan | 6–2 | 75.00% |
| Sieg vs Nina | 2–6 | 25.00% |
| Sieg vs Jun | 3–5 | 37.50% |
| Sieg vs Alisa | 2–5 | 28.57% |
| Sieg vs Lidia | 3–3 | 50.00% |
| Sieg vs Jin | 3–3 | 50.00% |
| Sieg vs Asuka | 5–1 | 83.33% |
| Sieg vs Feng | 2–4 | 33.33% |
| Sieg vs Lars | 3–3 | 50.00% |
| Sieg vs Lee | 1–4 | 20.00% |
| Sieg vs Dragunov | 2–2 | 50.00% |
| Sieg vs Raven | 2–2 | 50.00% |
| Sieg vs Azucena | 2–1 | 66.67% |
| Sieg vs Xiaoyu | 2–1 | 66.67% |
| Sieg vs Lili | 2–1 | 66.67% |
| Sieg vs Paul | 0–2 | 0.00% |
| Sieg vs Yoshimitsu | 2–0 | 100.00% |
| Sieg vs Leo | 2–0 | 100.00% |
| Sieg vs Eddy | 0–1 | 0.00% |
| Sieg vs Law | 0–1 | 0.00% |
| Sieg vs Devil Jin | 1–0 | 100.00% |
| Sieg vs Zafina | 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.