| Jammey vs King | 32–12 | 72.73% |
| Jammey vs Yoshimitsu | 14–17 | 45.16% |
| Jammey vs Bryan | 15–14 | 51.72% |
| Jammey vs Jin | 14–11 | 56.00% |
| Jammey vs Law | 17–6 | 73.91% |
| Jammey vs Hwoarang | 14–9 | 60.87% |
| Jammey vs Victor | 14–8 | 63.64% |
| Jammey vs Steve | 12–9 | 57.14% |
| Jammey vs Lili | 15–6 | 71.43% |
| Jammey vs Kazuya | 13–7 | 65.00% |
| Jammey vs Feng | 9–11 | 45.00% |
| Jammey vs Lee | 13–7 | 65.00% |
| Jammey vs Reina | 13–3 | 81.25% |
| Jammey vs Eddy | 8–6 | 57.14% |
| Jammey vs Xiaoyu | 8–5 | 61.54% |
| Jammey vs Paul | 4–8 | 33.33% |
| Jammey vs Dragunov | 7–5 | 58.33% |
| Jammey vs Leroy | 6–6 | 50.00% |
| Jammey vs Azucena | 10–1 | 90.91% |
| Jammey vs Lars | 6–4 | 60.00% |
| Jammey vs Asuka | 7–2 | 77.78% |
| Jammey vs Claudio | 5–4 | 55.56% |
| Jammey vs Leo | 3–4 | 42.86% |
| Jammey vs Alisa | 6–1 | 85.71% |
| Jammey vs Zafina | 5–0 | 100.00% |
| Jammey vs Jun | 3–2 | 60.00% |
| Jammey vs Raven | 0–5 | 0.00% |
| Jammey vs Shaheen | 0–3 | 0.00% |
| Jammey vs Clive | 1–2 | 33.33% |
| Jammey vs Nina | 2–0 | 100.00% |
| Jammey vs Kuma | 2–0 | 100.00% |
| Jammey vs Jack-8 | 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.