| Kay Vicious vs King | 4–11 | 26.67% |
| Kay Vicious vs Leroy | 3–12 | 20.00% |
| Kay Vicious vs Jin | 3–11 | 21.43% |
| Kay Vicious vs Steve | 3–9 | 25.00% |
| Kay Vicious vs Heihachi | 4–4 | 50.00% |
| Kay Vicious vs Bryan | 1–6 | 14.29% |
| Kay Vicious vs Clive | 4–3 | 57.14% |
| Kay Vicious vs Yoshimitsu | 2–3 | 40.00% |
| Kay Vicious vs Hwoarang | 2–3 | 40.00% |
| Kay Vicious vs Kazuya | 2–3 | 40.00% |
| Kay Vicious vs Lars | 4–1 | 80.00% |
| Kay Vicious vs Eddy | 1–4 | 20.00% |
| Kay Vicious vs Law | 2–2 | 50.00% |
| Kay Vicious vs Lili | 2–2 | 50.00% |
| Kay Vicious vs Nina | 3–1 | 75.00% |
| Kay Vicious vs Reina | 1–3 | 25.00% |
| Kay Vicious vs Lidia | 0–4 | 0.00% |
| Kay Vicious vs Dragunov | 1–2 | 33.33% |
| Kay Vicious vs Shaheen | 1–2 | 33.33% |
| Kay Vicious vs Jun | 0–3 | 0.00% |
| Kay Vicious vs Azucena | 1–2 | 33.33% |
| Kay Vicious vs Leo | 0–2 | 0.00% |
| Kay Vicious vs Alisa | 0–2 | 0.00% |
| Kay Vicious vs Xiaoyu | 1–0 | 100.00% |
| Kay Vicious vs Lee | 0–1 | 0.00% |
| Kay Vicious vs Zafina | 1–0 | 100.00% |
| Kay Vicious vs Victor | 0–1 | 0.00% |
| Kay Vicious vs Anna | 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.