| J_kay vs King | 9–10 | 47.37% |
| J_kay vs Dragunov | 4–11 | 26.67% |
| J_kay vs Hwoarang | 8–6 | 57.14% |
| J_kay vs Jun | 8–4 | 66.67% |
| J_kay vs Eddy | 2–10 | 16.67% |
| J_kay vs Bryan | 2–8 | 20.00% |
| J_kay vs Steve | 3–4 | 42.86% |
| J_kay vs Reina | 3–4 | 42.86% |
| J_kay vs Jin | 3–3 | 50.00% |
| J_kay vs Jack-8 | 3–3 | 50.00% |
| J_kay vs Alisa | 2–4 | 33.33% |
| J_kay vs Law | 0–5 | 0.00% |
| J_kay vs Feng | 0–5 | 0.00% |
| J_kay vs Lars | 0–5 | 0.00% |
| J_kay vs Lee | 2–3 | 40.00% |
| J_kay vs Leroy | 5–0 | 100.00% |
| J_kay vs Raven | 2–3 | 40.00% |
| J_kay vs Paul | 2–2 | 50.00% |
| J_kay vs Devil Jin | 0–4 | 0.00% |
| J_kay vs Kazuya | 1–2 | 33.33% |
| J_kay vs Xiaoyu | 1–2 | 33.33% |
| J_kay vs Yoshimitsu | 2–0 | 100.00% |
| J_kay vs Asuka | 1–1 | 50.00% |
| J_kay vs Nina | 0–2 | 0.00% |
| J_kay vs Shaheen | 2–0 | 100.00% |
| J_kay vs Leo | 1–0 | 100.00% |
| J_kay vs Victor | 0–1 | 0.00% |
| J_kay vs Lili | 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.