| Sideris vs Asuka | 11–4 | 73.33% |
| Sideris vs Jin | 8–3 | 72.73% |
| Sideris vs Reina | 10–0 | 100.00% |
| Sideris vs Kazuya | 7–2 | 77.78% |
| Sideris vs Steve | 7–2 | 77.78% |
| Sideris vs Bryan | 6–1 | 85.71% |
| Sideris vs Yoshimitsu | 4–2 | 66.67% |
| Sideris vs Devil Jin | 5–1 | 83.33% |
| Sideris vs Lili | 6–0 | 100.00% |
| Sideris vs Victor | 4–2 | 66.67% |
| Sideris vs Dragunov | 3–2 | 60.00% |
| Sideris vs Nina | 2–3 | 40.00% |
| Sideris vs Armor King | 5–0 | 100.00% |
| Sideris vs Leo | 0–4 | 0.00% |
| Sideris vs Lee | 2–2 | 50.00% |
| Sideris vs Jun | 2–2 | 50.00% |
| Sideris vs Lars | 2–1 | 66.67% |
| Sideris vs Zafina | 2–1 | 66.67% |
| Sideris vs Heihachi | 3–0 | 100.00% |
| Sideris vs Clive | 3–0 | 100.00% |
| Sideris vs Law | 1–1 | 50.00% |
| Sideris vs Xiaoyu | 2–0 | 100.00% |
| Sideris vs Claudio | 2–0 | 100.00% |
| Sideris vs Azucena | 2–0 | 100.00% |
| Sideris vs King | 1–0 | 100.00% |
| Sideris vs Alisa | 1–0 | 100.00% |
| Sideris vs Raven | 1–0 | 100.00% |
| Sideris vs Lidia | 1–0 | 100.00% |
| Sideris vs Fahkumram | 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.