| Jamm-Joka vs Reina | 11–3 | 78.57% |
| Jamm-Joka vs King | 10–0 | 100.00% |
| Jamm-Joka vs Eddy | 4–6 | 40.00% |
| Jamm-Joka vs Law | 1–4 | 20.00% |
| Jamm-Joka vs Yoshimitsu | 5–0 | 100.00% |
| Jamm-Joka vs Steve | 5–0 | 100.00% |
| Jamm-Joka vs Jack-8 | 3–2 | 60.00% |
| Jamm-Joka vs Jin | 2–2 | 50.00% |
| Jamm-Joka vs Nina | 3–1 | 75.00% |
| Jamm-Joka vs Victor | 2–2 | 50.00% |
| Jamm-Joka vs Hwoarang | 3–0 | 100.00% |
| Jamm-Joka vs Leo | 3–0 | 100.00% |
| Jamm-Joka vs Kazuya | 2–0 | 100.00% |
| Jamm-Joka vs Asuka | 1–1 | 50.00% |
| Jamm-Joka vs Lars | 2–0 | 100.00% |
| Jamm-Joka vs Shaheen | 0–2 | 0.00% |
| Jamm-Joka vs Paul | 1–0 | 100.00% |
| Jamm-Joka vs Xiaoyu | 1–0 | 100.00% |
| Jamm-Joka vs Feng | 1–0 | 100.00% |
| Jamm-Joka vs Lili | 1–0 | 100.00% |
| Jamm-Joka vs Dragunov | 1–0 | 100.00% |
| Jamm-Joka vs Alisa | 0–1 | 0.00% |
| Jamm-Joka vs Lee | 1–0 | 100.00% |
| Jamm-Joka vs Leroy | 1–0 | 100.00% |
| Jamm-Joka vs Azucena | 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.