| Sirius vs Kazuya | 46–49 | 48.42% |
| Sirius vs Jin | 34–40 | 45.95% |
| Sirius vs King | 30–42 | 41.67% |
| Sirius vs Law | 22–36 | 37.93% |
| Sirius vs Steve | 20–31 | 39.22% |
| Sirius vs Bryan | 23–22 | 51.11% |
| Sirius vs Hwoarang | 15–28 | 34.88% |
| Sirius vs Eddy | 17–23 | 42.50% |
| Sirius vs Reina | 26–11 | 70.27% |
| Sirius vs Lili | 12–16 | 42.86% |
| Sirius vs Yoshimitsu | 9–18 | 33.33% |
| Sirius vs Paul | 11–14 | 44.00% |
| Sirius vs Victor | 5–18 | 21.74% |
| Sirius vs Anna | 8–13 | 38.10% |
| Sirius vs Nina | 4–16 | 20.00% |
| Sirius vs Jun | 5–15 | 25.00% |
| Sirius vs Xiaoyu | 7–12 | 36.84% |
| Sirius vs Devil Jin | 4–14 | 22.22% |
| Sirius vs Azucena | 4–14 | 22.22% |
| Sirius vs Dragunov | 6–11 | 35.29% |
| Sirius vs Heihachi | 10–7 | 58.82% |
| Sirius vs Lidia | 7–9 | 43.75% |
| Sirius vs Feng | 4–11 | 26.67% |
| Sirius vs Lee | 4–11 | 26.67% |
| Sirius vs Clive | 6–9 | 40.00% |
| Sirius vs Lars | 2–12 | 14.29% |
| Sirius vs Fahkumram | 5–9 | 35.71% |
| Sirius vs Alisa | 5–8 | 38.46% |
| Sirius vs Asuka | 9–3 | 75.00% |
| Sirius vs Leroy | 4–6 | 40.00% |
| Sirius vs Raven | 6–4 | 60.00% |
| Sirius vs Claudio | 5–4 | 55.56% |
| Sirius vs Leo | 2–6 | 25.00% |
| Sirius vs Jack-8 | 3–4 | 42.86% |
| Sirius vs Kuma | 1–6 | 14.29% |
| Sirius vs Shaheen | 2–4 | 33.33% |
| Sirius vs Zafina | 1–5 | 16.67% |
| Sirius vs Armor King | 1–2 | 33.33% |
| Sirius vs Miary Zo | 1–1 | 50.00% |
| Sirius 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.