| JayKay vs Jin | 11–8 | 57.89% |
| JayKay vs Lili | 8–3 | 72.73% |
| JayKay vs Devil Jin | 5–5 | 50.00% |
| JayKay vs Heihachi | 5–4 | 55.56% |
| JayKay vs Yoshimitsu | 7–1 | 87.50% |
| JayKay vs Kazuya | 4–4 | 50.00% |
| JayKay vs Hwoarang | 6–1 | 85.71% |
| JayKay vs Bryan | 6–1 | 85.71% |
| JayKay vs Lee | 4–2 | 66.67% |
| JayKay vs Reina | 3–3 | 50.00% |
| JayKay vs Clive | 4–2 | 66.67% |
| JayKay vs Anna | 3–3 | 50.00% |
| JayKay vs King | 2–3 | 40.00% |
| JayKay vs Dragunov | 3–2 | 60.00% |
| JayKay vs Lars | 4–0 | 100.00% |
| JayKay vs Law | 2–1 | 66.67% |
| JayKay vs Steve | 3–0 | 100.00% |
| JayKay vs Jun | 1–2 | 33.33% |
| JayKay vs Azucena | 1–2 | 33.33% |
| JayKay vs Lidia | 1–2 | 33.33% |
| JayKay vs Paul | 0–2 | 0.00% |
| JayKay vs Asuka | 2–0 | 100.00% |
| JayKay vs Feng | 0–2 | 0.00% |
| JayKay vs Alisa | 2–0 | 100.00% |
| JayKay vs Claudio | 2–0 | 100.00% |
| JayKay vs Victor | 2–0 | 100.00% |
| JayKay vs Nina | 1–0 | 100.00% |
| JayKay vs Leroy | 0–1 | 0.00% |
| JayKay vs Fahkumram | 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.