| JK9999 vs Kazuya | 8–14 | 36.36% |
| JK9999 vs Reina | 10–3 | 76.92% |
| JK9999 vs Steve | 4–7 | 36.36% |
| JK9999 vs Jin | 4–5 | 44.44% |
| JK9999 vs Victor | 4–5 | 44.44% |
| JK9999 vs Clive | 4–5 | 44.44% |
| JK9999 vs Devil Jin | 4–4 | 50.00% |
| JK9999 vs Jun | 3–4 | 42.86% |
| JK9999 vs Bryan | 3–3 | 50.00% |
| JK9999 vs Asuka | 4–2 | 66.67% |
| JK9999 vs Heihachi | 2–4 | 33.33% |
| JK9999 vs King | 3–2 | 60.00% |
| JK9999 vs Dragunov | 2–3 | 40.00% |
| JK9999 vs Kuma | 3–2 | 60.00% |
| JK9999 vs Law | 1–3 | 25.00% |
| JK9999 vs Xiaoyu | 2–2 | 50.00% |
| JK9999 vs Lili | 1–3 | 25.00% |
| JK9999 vs Alisa | 2–2 | 50.00% |
| JK9999 vs Paul | 2–1 | 66.67% |
| JK9999 vs Hwoarang | 1–2 | 33.33% |
| JK9999 vs Jack-8 | 2–1 | 66.67% |
| JK9999 vs Nina | 3–0 | 100.00% |
| JK9999 vs Lidia | 1–2 | 33.33% |
| JK9999 vs Yoshimitsu | 2–0 | 100.00% |
| JK9999 vs Lars | 2–0 | 100.00% |
| JK9999 vs Lee | 2–0 | 100.00% |
| JK9999 vs Azucena | 0–2 | 0.00% |
| JK9999 vs Shaheen | 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.