| Sirius Samuel vs Heihachi | 24–25 | 48.98% |
| Sirius Samuel vs Reina | 13–9 | 59.09% |
| Sirius Samuel vs Yoshimitsu | 15–6 | 71.43% |
| Sirius Samuel vs Bryan | 11–10 | 52.38% |
| Sirius Samuel vs Dragunov | 10–5 | 66.67% |
| Sirius Samuel vs King | 8–6 | 57.14% |
| Sirius Samuel vs Steve | 6–7 | 46.15% |
| Sirius Samuel vs Lili | 6–6 | 50.00% |
| Sirius Samuel vs Azucena | 9–3 | 75.00% |
| Sirius Samuel vs Leo | 7–3 | 70.00% |
| Sirius Samuel vs Lars | 4–6 | 40.00% |
| Sirius Samuel vs Lee | 7–3 | 70.00% |
| Sirius Samuel vs Raven | 4–6 | 40.00% |
| Sirius Samuel vs Devil Jin | 6–3 | 66.67% |
| Sirius Samuel vs Lidia | 4–5 | 44.44% |
| Sirius Samuel vs Kazuya | 4–4 | 50.00% |
| Sirius Samuel vs Xiaoyu | 2–4 | 33.33% |
| Sirius Samuel vs Jack-8 | 4–2 | 66.67% |
| Sirius Samuel vs Jun | 3–3 | 50.00% |
| Sirius Samuel vs Victor | 2–4 | 33.33% |
| Sirius Samuel vs Paul | 3–2 | 60.00% |
| Sirius Samuel vs Law | 2–3 | 40.00% |
| Sirius Samuel vs Hwoarang | 2–3 | 40.00% |
| Sirius Samuel vs Jin | 5–0 | 100.00% |
| Sirius Samuel vs Feng | 2–3 | 40.00% |
| Sirius Samuel vs Eddy | 1–4 | 20.00% |
| Sirius Samuel vs Asuka | 4–0 | 100.00% |
| Sirius Samuel vs Nina | 2–2 | 50.00% |
| Sirius Samuel vs Shaheen | 2–1 | 66.67% |
| Sirius Samuel vs Zafina | 1–2 | 33.33% |
| Sirius Samuel vs Alisa | 0–2 | 0.00% |
| Sirius Samuel vs Claudio | 0–2 | 0.00% |
| Sirius Samuel vs Kuma | 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.