| JamMastaJ vs Jin | 6–10 | 37.50% |
| JamMastaJ vs Reina | 4–10 | 28.57% |
| JamMastaJ vs Azucena | 2–8 | 20.00% |
| JamMastaJ vs Dragunov | 1–7 | 12.50% |
| JamMastaJ vs Bryan | 5–2 | 71.43% |
| JamMastaJ vs Lars | 3–3 | 50.00% |
| JamMastaJ vs Lee | 2–4 | 33.33% |
| JamMastaJ vs Kazuya | 3–2 | 60.00% |
| JamMastaJ vs Victor | 1–4 | 20.00% |
| JamMastaJ vs Eddy | 4–1 | 80.00% |
| JamMastaJ vs King | 3–1 | 75.00% |
| JamMastaJ vs Yoshimitsu | 2–2 | 50.00% |
| JamMastaJ vs Hwoarang | 2–2 | 50.00% |
| JamMastaJ vs Lili | 1–3 | 25.00% |
| JamMastaJ vs Nina | 4–0 | 100.00% |
| JamMastaJ vs Steve | 1–2 | 33.33% |
| JamMastaJ vs Jack-8 | 3–0 | 100.00% |
| JamMastaJ vs Claudio | 1–2 | 33.33% |
| JamMastaJ vs Jun | 2–1 | 66.67% |
| JamMastaJ vs Raven | 2–1 | 66.67% |
| JamMastaJ vs Paul | 1–1 | 50.00% |
| JamMastaJ vs Leo | 2–0 | 100.00% |
| JamMastaJ vs Alisa | 0–2 | 0.00% |
| JamMastaJ vs Shaheen | 0–2 | 0.00% |
| JamMastaJ vs Kuma | 1–1 | 50.00% |
| JamMastaJ vs Panda | 0–2 | 0.00% |
| JamMastaJ vs Asuka | 1–0 | 100.00% |
| JamMastaJ vs Devil Jin | 1–0 | 100.00% |
| JamMastaJ vs Leroy | 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.