| sayumin1021 vs Asuka | 8–1 | 88.89% |
| sayumin1021 vs Paul | 6–1 | 85.71% |
| sayumin1021 vs Reina | 7–0 | 100.00% |
| sayumin1021 vs Kazuya | 4–1 | 80.00% |
| sayumin1021 vs Heihachi | 5–0 | 100.00% |
| sayumin1021 vs Dragunov | 3–1 | 75.00% |
| sayumin1021 vs Leroy | 2–1 | 66.67% |
| sayumin1021 vs Law | 2–0 | 100.00% |
| sayumin1021 vs King | 2–0 | 100.00% |
| sayumin1021 vs Xiaoyu | 2–0 | 100.00% |
| sayumin1021 vs Feng | 2–0 | 100.00% |
| sayumin1021 vs Lee | 1–1 | 50.00% |
| sayumin1021 vs Azucena | 2–0 | 100.00% |
| sayumin1021 vs Victor | 2–0 | 100.00% |
| sayumin1021 vs Jin | 2–0 | 100.00% |
| sayumin1021 vs Devil Jin | 2–0 | 100.00% |
| sayumin1021 vs Yoshimitsu | 1–0 | 100.00% |
| sayumin1021 vs Bryan | 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.