| Jammaroun vs Bryan | 23–33 | 41.07% |
| Jammaroun vs Kazuya | 26–22 | 54.17% |
| Jammaroun vs Lili | 25–18 | 58.14% |
| Jammaroun vs Jin | 18–24 | 42.86% |
| Jammaroun vs King | 16–24 | 40.00% |
| Jammaroun vs Devil Jin | 21–17 | 55.26% |
| Jammaroun vs Reina | 18–15 | 54.55% |
| Jammaroun vs Dragunov | 6–26 | 18.75% |
| Jammaroun vs Paul | 12–16 | 42.86% |
| Jammaroun vs Law | 14–14 | 50.00% |
| Jammaroun vs Eddy | 14–14 | 50.00% |
| Jammaroun vs Steve | 11–13 | 45.83% |
| Jammaroun vs Jun | 15–6 | 71.43% |
| Jammaroun vs Yoshimitsu | 5–12–3 | 29.41% |
| Jammaroun vs Lee | 11–9 | 55.00% |
| Jammaroun vs Azucena | 10–10 | 50.00% |
| Jammaroun vs Xiaoyu | 7–12 | 36.84% |
| Jammaroun vs Nina | 8–11 | 42.11% |
| Jammaroun vs Hwoarang | 3–15 | 16.67% |
| Jammaroun vs Feng | 9–8 | 52.94% |
| Jammaroun vs Jack-8 | 12–3 | 80.00% |
| Jammaroun vs Victor | 9–5 | 64.29% |
| Jammaroun vs Asuka | 7–6 | 53.85% |
| Jammaroun vs Leo | 5–6 | 45.45% |
| Jammaroun vs Lars | 7–4 | 63.64% |
| Jammaroun vs Claudio | 3–6 | 33.33% |
| Jammaroun vs Alisa | 3–5 | 37.50% |
| Jammaroun vs Shaheen | 2–5 | 28.57% |
| Jammaroun vs Leroy | 4–3 | 57.14% |
| Jammaroun vs Kuma | 3–3 | 50.00% |
| Jammaroun vs Panda | 1–5 | 16.67% |
| Jammaroun vs Raven | 4–2 | 66.67% |
| Jammaroun vs Heihachi | 1–3 | 25.00% |
| Jammaroun vs Zafina | 0–2 | 0.00% |
| Jammaroun vs Anna | 2–0 | 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.