| Sigma121 vs King | 2–10 | 16.67% |
| Sigma121 vs Asuka | 2–8 | 20.00% |
| Sigma121 vs Azucena | 1–7 | 12.50% |
| Sigma121 vs Lidia | 1–6 | 14.29% |
| Sigma121 vs Jin | 3–4 | 42.86% |
| Sigma121 vs Lili | 1–6 | 14.29% |
| Sigma121 vs Yoshimitsu | 1–5 | 16.67% |
| Sigma121 vs Jun | 1–3 | 25.00% |
| Sigma121 vs Leroy | 3–1 | 75.00% |
| Sigma121 vs Reina | 2–2 | 50.00% |
| Sigma121 vs Heihachi | 2–2 | 50.00% |
| Sigma121 vs Hwoarang | 2–1 | 66.67% |
| Sigma121 vs Law | 0–3 | 0.00% |
| Sigma121 vs Bryan | 1–2 | 33.33% |
| Sigma121 vs Kazuya | 1–2 | 33.33% |
| Sigma121 vs Feng | 2–1 | 66.67% |
| Sigma121 vs Dragunov | 1–2 | 33.33% |
| Sigma121 vs Leo | 2–1 | 66.67% |
| Sigma121 vs Alisa | 2–1 | 66.67% |
| Sigma121 vs Victor | 1–2 | 33.33% |
| Sigma121 vs Devil Jin | 0–2 | 0.00% |
| Sigma121 vs Lars | 1–1 | 50.00% |
| Sigma121 vs Xiaoyu | 0–1 | 0.00% |
| Sigma121 vs Steve | 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.