| Sigma vs King | 36–30 | 54.55% |
| Sigma vs Reina | 41–18 | 69.49% |
| Sigma vs Bryan | 37–18 | 67.27% |
| Sigma vs Lili | 32–23 | 58.18% |
| Sigma vs Jin | 33–20 | 62.26% |
| Sigma vs Kazuya | 25–23 | 52.08% |
| Sigma vs Steve | 22–20 | 52.38% |
| Sigma vs Hwoarang | 19–17 | 52.78% |
| Sigma vs Dragunov | 14–20 | 41.18% |
| Sigma vs Lee | 18–14 | 56.25% |
| Sigma vs Eddy | 16–16 | 50.00% |
| Sigma vs Law | 16–15 | 51.61% |
| Sigma vs Paul | 16–14 | 53.33% |
| Sigma vs Yoshimitsu | 19–11 | 63.33% |
| Sigma vs Jun | 16–13 | 55.17% |
| Sigma vs Asuka | 13–13 | 50.00% |
| Sigma vs Victor | 8–17 | 32.00% |
| Sigma vs Devil Jin | 9–12 | 42.86% |
| Sigma vs Azucena | 16–5 | 76.19% |
| Sigma vs Lars | 10–10 | 50.00% |
| Sigma vs Leo | 7–12 | 36.84% |
| Sigma vs Xiaoyu | 8–9 | 47.06% |
| Sigma vs Jack-8 | 8–8 | 50.00% |
| Sigma vs Nina | 5–11 | 31.25% |
| Sigma vs Kuma | 9–5 | 64.29% |
| Sigma vs Claudio | 9–3 | 75.00% |
| Sigma vs Leroy | 3–9 | 25.00% |
| Sigma vs Alisa | 6–5 | 54.55% |
| Sigma vs Feng | 4–4 | 50.00% |
| Sigma vs Zafina | 5–2 | 71.43% |
| Sigma vs Raven | 6–1 | 85.71% |
| Sigma vs Shaheen | 4–1 | 80.00% |
| Sigma vs Lidia | 3–2 | 60.00% |
| Sigma vs Clive | 1–2 | 33.33% |
| Sigma 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.