| Jammy vs Hwoarang | 11–19 | 36.67% |
| Jammy vs Reina | 11–9 | 55.00% |
| Jammy vs Jin | 10–9 | 52.63% |
| Jammy vs Kazuya | 10–7 | 58.82% |
| Jammy vs Clive | 5–11 | 31.25% |
| Jammy vs King | 9–6 | 60.00% |
| Jammy vs Miary Zo | 10–4 | 71.43% |
| Jammy vs Law | 4–9 | 30.77% |
| Jammy vs Lars | 8–4 | 66.67% |
| Jammy vs Paul | 7–4 | 63.64% |
| Jammy vs Xiaoyu | 7–3 | 70.00% |
| Jammy vs Alisa | 9–1 | 90.00% |
| Jammy vs Leroy | 6–4 | 60.00% |
| Jammy vs Steve | 5–4 | 55.56% |
| Jammy vs Feng | 6–2 | 75.00% |
| Jammy vs Nina | 2–6 | 25.00% |
| Jammy vs Jun | 4–4 | 50.00% |
| Jammy vs Victor | 2–5 | 28.57% |
| Jammy vs Eddy | 3–4 | 42.86% |
| Jammy vs Devil Jin | 2–4 | 33.33% |
| Jammy vs Dragunov | 3–3 | 50.00% |
| Jammy vs Azucena | 2–4 | 33.33% |
| Jammy vs Anna | 2–4 | 33.33% |
| Jammy vs Fahkumram | 4–2 | 66.67% |
| Jammy vs Jack-8 | 2–3 | 40.00% |
| Jammy vs Lili | 2–3 | 40.00% |
| Jammy vs Yoshimitsu | 0–4 | 0.00% |
| Jammy vs Asuka | 2–2 | 50.00% |
| Jammy vs Leo | 2–1 | 66.67% |
| Jammy vs Claudio | 1–2 | 33.33% |
| Jammy vs Bryan | 1–1 | 50.00% |
| Jammy vs Raven | 2–0 | 100.00% |
| Jammy vs Lee | 0–1 | 0.00% |
| Jammy vs Panda | 0–1 | 0.00% |
| Jammy vs Zafina | 1–0 | 100.00% |
| Jammy vs Armor King | 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.