| JustJack4 vs Kazuya | 1–5 | 16.67% |
| JustJack4 vs Clive | 2–4 | 33.33% |
| JustJack4 vs Jin | 1–4 | 20.00% |
| JustJack4 vs Claudio | 2–3 | 40.00% |
| JustJack4 vs Jun | 1–3 | 25.00% |
| JustJack4 vs Devil Jin | 3–0 | 100.00% |
| JustJack4 vs Hwoarang | 1–2 | 33.33% |
| JustJack4 vs Raven | 1–2 | 33.33% |
| JustJack4 vs Leo | 0–2 | 0.00% |
| JustJack4 vs Paul | 0–2 | 0.00% |
| JustJack4 vs Bryan | 0–2 | 0.00% |
| JustJack4 vs Lee | 2–0 | 100.00% |
| JustJack4 vs Azucena | 0–2 | 0.00% |
| JustJack4 vs Eddy | 0–2 | 0.00% |
| JustJack4 vs King | 0–1 | 0.00% |
| JustJack4 vs Alisa | 1–0 | 100.00% |
| JustJack4 vs Nina | 0–1 | 0.00% |
| JustJack4 vs Reina | 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.