| Jammy Jam vs King | 6–10 | 37.50% |
| Jammy Jam vs Hwoarang | 8–8 | 50.00% |
| Jammy Jam vs Steve | 5–5 | 50.00% |
| Jammy Jam vs Reina | 6–3 | 66.67% |
| Jammy Jam vs Victor | 4–4 | 50.00% |
| Jammy Jam vs Armor King | 3–5 | 37.50% |
| Jammy Jam vs Law | 2–5 | 28.57% |
| Jammy Jam vs Xiaoyu | 4–2 | 66.67% |
| Jammy Jam vs Bryan | 2–4 | 33.33% |
| Jammy Jam vs Kazuya | 4–2 | 66.67% |
| Jammy Jam vs Alisa | 3–3 | 50.00% |
| Jammy Jam vs Jin | 1–4 | 20.00% |
| Jammy Jam vs Leroy | 2–3 | 40.00% |
| Jammy Jam vs Azucena | 0–5 | 0.00% |
| Jammy Jam vs Eddy | 3–2 | 60.00% |
| Jammy Jam vs Lili | 1–3 | 25.00% |
| Jammy Jam vs Claudio | 1–3 | 25.00% |
| Jammy Jam vs Fahkumram | 0–4 | 0.00% |
| Jammy Jam vs Dragunov | 1–2 | 33.33% |
| Jammy Jam vs Lidia | 1–2 | 33.33% |
| Jammy Jam vs Heihachi | 1–2 | 33.33% |
| Jammy Jam vs Yoshimitsu | 2–0 | 100.00% |
| Jammy Jam vs Jack-8 | 0–2 | 0.00% |
| Jammy Jam vs Lars | 0–2 | 0.00% |
| Jammy Jam vs Anna | 0–2 | 0.00% |
| Jammy Jam vs Devil Jin | 0–1 | 0.00% |
| Jammy Jam vs Feng | 0–1 | 0.00% |
| Jammy Jam vs Leo | 0–1 | 0.00% |
| Jammy Jam vs Clive | 0–1 | 0.00% |
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.