| Siddl vs King | 15–14 | 51.72% |
| Siddl vs Hwoarang | 9–9 | 50.00% |
| Siddl vs Jin | 10–6 | 62.50% |
| Siddl vs Bryan | 6–7 | 46.15% |
| Siddl vs Kazuya | 2–10 | 16.67% |
| Siddl vs Steve | 7–4 | 63.64% |
| Siddl vs Reina | 6–3 | 66.67% |
| Siddl vs Paul | 2–6 | 25.00% |
| Siddl vs Dragunov | 2–6 | 25.00% |
| Siddl vs Law | 2–5 | 28.57% |
| Siddl vs Devil Jin | 4–3 | 57.14% |
| Siddl vs Jun | 4–3 | 57.14% |
| Siddl vs Azucena | 3–4 | 42.86% |
| Siddl vs Feng | 3–3 | 50.00% |
| Siddl vs Lili | 2–3 | 40.00% |
| Siddl vs Claudio | 1–4 | 20.00% |
| Siddl vs Nina | 1–4 | 20.00% |
| Siddl vs Panda | 1–4 | 20.00% |
| Siddl vs Eddy | 3–2 | 60.00% |
| Siddl vs Lee | 4–0 | 100.00% |
| Siddl vs Heihachi | 1–3 | 25.00% |
| Siddl vs Fahkumram | 2–2 | 50.00% |
| Siddl vs Leo | 0–3 | 0.00% |
| Siddl vs Shaheen | 1–2 | 33.33% |
| Siddl vs Kuma | 1–2 | 33.33% |
| Siddl vs Victor | 2–1 | 66.67% |
| Siddl vs Lidia | 2–1 | 66.67% |
| Siddl vs Yoshimitsu | 1–1 | 50.00% |
| Siddl vs Xiaoyu | 2–0 | 100.00% |
| Siddl vs Asuka | 0–2 | 0.00% |
| Siddl vs Leroy | 0–2 | 0.00% |
| Siddl vs Clive | 0–2 | 0.00% |
| Siddl vs Jack-8 | 1–0 | 100.00% |
| Siddl vs Zafina | 1–0 | 100.00% |
| Siddl vs Raven | 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.