| Kay_ vs Jin | 16–9 | 64.00% |
| Kay_ vs King | 16–6 | 72.73% |
| Kay_ vs Heihachi | 11–5 | 68.75% |
| Kay_ vs Yoshimitsu | 8–3 | 72.73% |
| Kay_ vs Fahkumram | 4–7 | 36.36% |
| Kay_ vs Steve | 8–2 | 80.00% |
| Kay_ vs Hwoarang | 5–4 | 55.56% |
| Kay_ vs Bryan | 6–3 | 66.67% |
| Kay_ vs Kazuya | 6–3 | 66.67% |
| Kay_ vs Law | 3–5 | 37.50% |
| Kay_ vs Asuka | 4–4 | 50.00% |
| Kay_ vs Dragunov | 5–3 | 62.50% |
| Kay_ vs Xiaoyu | 1–6 | 14.29% |
| Kay_ vs Reina | 4–3 | 57.14% |
| Kay_ vs Raven | 4–3 | 57.14% |
| Kay_ vs Eddy | 0–6 | 0.00% |
| Kay_ vs Lili | 2–3 | 40.00% |
| Kay_ vs Clive | 4–1 | 80.00% |
| Kay_ vs Devil Jin | 4–0 | 100.00% |
| Kay_ vs Panda | 2–2 | 50.00% |
| Kay_ vs Azucena | 0–4 | 0.00% |
| Kay_ vs Paul | 2–1 | 66.67% |
| Kay_ vs Nina | 1–2 | 33.33% |
| Kay_ vs Zafina | 1–2 | 33.33% |
| Kay_ vs Victor | 0–3 | 0.00% |
| Kay_ vs Anna | 2–1 | 66.67% |
| Kay_ vs Jack-8 | 0–2 | 0.00% |
| Kay_ vs Leo | 0–2 | 0.00% |
| Kay_ vs Lidia | 0–2 | 0.00% |
| Kay_ vs Claudio | 1–0 | 100.00% |
| Kay_ vs Kuma | 1–0 | 100.00% |
| Kay_ vs Jun | 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.