| Sirio vs Kazuya | 10–12 | 45.45% |
| Sirio vs Steve | 5–11 | 31.25% |
| Sirio vs Dragunov | 4–9 | 30.77% |
| Sirio vs Paul | 5–6 | 45.45% |
| Sirio vs Bryan | 8–2 | 80.00% |
| Sirio vs Yoshimitsu | 2–7 | 22.22% |
| Sirio vs Law | 7–1 | 87.50% |
| Sirio vs King | 3–5 | 37.50% |
| Sirio vs Nina | 6–2 | 75.00% |
| Sirio vs Asuka | 4–3 | 57.14% |
| Sirio vs Jun | 5–2 | 71.43% |
| Sirio vs Eddy | 2–5 | 28.57% |
| Sirio vs Xiaoyu | 4–2 | 66.67% |
| Sirio vs Jack-8 | 3–3 | 50.00% |
| Sirio vs Lili | 2–4 | 33.33% |
| Sirio vs Jin | 3–2 | 60.00% |
| Sirio vs Reina | 2–3 | 40.00% |
| Sirio vs Hwoarang | 2–2 | 50.00% |
| Sirio vs Feng | 2–2 | 50.00% |
| Sirio vs Lee | 4–0 | 100.00% |
| Sirio vs Leroy | 3–1 | 75.00% |
| Sirio vs Victor | 0–4 | 0.00% |
| Sirio vs Leo | 3–0 | 100.00% |
| Sirio vs Alisa | 0–3 | 0.00% |
| Sirio vs Devil Jin | 2–0 | 100.00% |
| Sirio vs Shaheen | 0–2 | 0.00% |
| Sirio vs Kuma | 2–0 | 100.00% |
| Sirio vs Raven | 2–0 | 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.