| Mad Sid vs King | 13–18 | 41.94% |
| Mad Sid vs Reina | 8–20 | 28.57% |
| Mad Sid vs Jin | 4–21 | 16.00% |
| Mad Sid vs Hwoarang | 2–20 | 9.09% |
| Mad Sid vs Devil Jin | 6–11 | 35.29% |
| Mad Sid vs Law | 3–12 | 20.00% |
| Mad Sid vs Jack-8 | 3–11 | 21.43% |
| Mad Sid vs Dragunov | 2–12 | 14.29% |
| Mad Sid vs Alisa | 2–12 | 14.29% |
| Mad Sid vs Asuka | 6–7 | 46.15% |
| Mad Sid vs Lili | 6–7 | 46.15% |
| Mad Sid vs Jun | 3–9 | 25.00% |
| Mad Sid vs Steve | 2–9 | 18.18% |
| Mad Sid vs Claudio | 4–7 | 36.36% |
| Mad Sid vs Eddy | 2–9 | 18.18% |
| Mad Sid vs Nina | 3–5 | 37.50% |
| Mad Sid vs Bryan | 0–7 | 0.00% |
| Mad Sid vs Yoshimitsu | 2–4 | 33.33% |
| Mad Sid vs Victor | 1–5 | 16.67% |
| Mad Sid vs Lee | 3–2 | 60.00% |
| Mad Sid vs Azucena | 4–1 | 80.00% |
| Mad Sid vs Lidia | 1–4 | 20.00% |
| Mad Sid vs Kazuya | 1–3 | 25.00% |
| Mad Sid vs Kuma | 1–3 | 25.00% |
| Mad Sid vs Zafina | 2–2 | 50.00% |
| Mad Sid vs Paul | 2–1 | 66.67% |
| Mad Sid vs Xiaoyu | 1–2 | 33.33% |
| Mad Sid vs Leroy | 0–3 | 0.00% |
| Mad Sid vs Feng | 0–2 | 0.00% |
| Mad Sid vs Leo | 0–2 | 0.00% |
| Mad Sid vs Lars | 0–2 | 0.00% |
| Mad Sid vs Panda | 1–0 | 100.00% |
| Mad Sid vs Raven | 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.