| SG21 vs Bryan | 10–16 | 38.46% |
| SG21 vs King | 9–16 | 36.00% |
| SG21 vs Reina | 17–8 | 68.00% |
| SG21 vs Jin | 12–5 | 70.59% |
| SG21 vs Steve | 10–4 | 71.43% |
| SG21 vs Kazuya | 7–6 | 53.85% |
| SG21 vs Eddy | 5–7 | 41.67% |
| SG21 vs Law | 3–7 | 30.00% |
| SG21 vs Dragunov | 6–4 | 60.00% |
| SG21 vs Jun | 4–6 | 40.00% |
| SG21 vs Lars | 4–5 | 44.44% |
| SG21 vs Xiaoyu | 3–4 | 42.86% |
| SG21 vs Jack-8 | 3–4 | 42.86% |
| SG21 vs Azucena | 4–2 | 66.67% |
| SG21 vs Nina | 3–2 | 60.00% |
| SG21 vs Paul | 1–3 | 25.00% |
| SG21 vs Alisa | 3–1 | 75.00% |
| SG21 vs Lee | 1–3 | 25.00% |
| SG21 vs Fahkumram | 2–2 | 50.00% |
| SG21 vs Hwoarang | 2–1 | 66.67% |
| SG21 vs Feng | 3–0 | 100.00% |
| SG21 vs Shaheen | 2–1 | 66.67% |
| SG21 vs Victor | 3–0 | 100.00% |
| SG21 vs Asuka | 1–1 | 50.00% |
| SG21 vs Lili | 0–2 | 0.00% |
| SG21 vs Leroy | 1–1 | 50.00% |
| SG21 vs Raven | 0–2 | 0.00% |
| SG21 vs Yoshimitsu | 0–1 | 0.00% |
| SG21 vs Devil Jin | 1–0 | 100.00% |
| SG21 vs Kuma | 1–0 | 100.00% |
| SG21 vs Lidia | 0–1 | 0.00% |
| SG21 vs Clive | 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.