| SiegFiend vs Reina | 11–9 | 55.00% |
| SiegFiend vs Kazuya | 7–12 | 36.84% |
| SiegFiend vs Dragunov | 3–10 | 23.08% |
| SiegFiend vs Law | 5–6 | 45.45% |
| SiegFiend vs Hwoarang | 4–6 | 40.00% |
| SiegFiend vs Jin | 3–6 | 33.33% |
| SiegFiend vs Steve | 3–6 | 33.33% |
| SiegFiend vs Paul | 1–7 | 12.50% |
| SiegFiend vs King | 4–4 | 50.00% |
| SiegFiend vs Asuka | 2–6 | 25.00% |
| SiegFiend vs Azucena | 3–5 | 37.50% |
| SiegFiend vs Jun | 3–4 | 42.86% |
| SiegFiend vs Lidia | 5–2 | 71.43% |
| SiegFiend vs Devil Jin | 3–2 | 60.00% |
| SiegFiend vs Lili | 1–4 | 20.00% |
| SiegFiend vs Eddy | 0–5 | 0.00% |
| SiegFiend vs Heihachi | 1–4 | 20.00% |
| SiegFiend vs Bryan | 2–2 | 50.00% |
| SiegFiend vs Leo | 0–4 | 0.00% |
| SiegFiend vs Xiaoyu | 2–1 | 66.67% |
| SiegFiend vs Shaheen | 2–1 | 66.67% |
| SiegFiend vs Kuma | 0–3 | 0.00% |
| SiegFiend vs Yoshimitsu | 2–0 | 100.00% |
| SiegFiend vs Nina | 0–2 | 0.00% |
| SiegFiend vs Lee | 2–0 | 100.00% |
| SiegFiend vs Leroy | 0–2 | 0.00% |
| SiegFiend vs Lars | 0–1 | 0.00% |
| SiegFiend vs Claudio | 0–1 | 0.00% |
| SiegFiend vs Panda | 0–1 | 0.00% |
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.