| GK21 vs King | 3–4 | 42.86% |
| GK21 vs Jin | 5–1 | 83.33% |
| GK21 vs Eddy | 2–4 | 33.33% |
| GK21 vs Law | 2–3 | 40.00% |
| GK21 vs Hwoarang | 4–1 | 80.00% |
| GK21 vs Kazuya | 2–3 | 40.00% |
| GK21 vs Jun | 3–1 | 75.00% |
| GK21 vs Dragunov | 3–0 | 100.00% |
| GK21 vs Lars | 2–1 | 66.67% |
| GK21 vs Alisa | 1–2 | 33.33% |
| GK21 vs Xiaoyu | 2–0 | 100.00% |
| GK21 vs Bryan | 2–0 | 100.00% |
| GK21 vs Steve | 2–0 | 100.00% |
| GK21 vs Devil Jin | 1–1 | 50.00% |
| GK21 vs Claudio | 0–2 | 0.00% |
| GK21 vs Paul | 1–0 | 100.00% |
| GK21 vs Asuka | 0–1 | 0.00% |
| GK21 vs Feng | 1–0 | 100.00% |
| GK21 vs Lili | 1–0 | 100.00% |
| GK21 vs Shaheen | 0–1 | 0.00% |
| GK21 vs Zafina | 1–0 | 100.00% |
| GK21 vs Leroy | 1–0 | 100.00% |
| GK21 vs Reina | 1–0 | 100.00% |
| GK21 vs Azucena | 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.