| Jammi vs King | 24–19 | 55.81% |
| Jammi vs Victor | 14–7 | 66.67% |
| Jammi vs Bryan | 8–7 | 53.33% |
| Jammi vs Kazuya | 8–6 | 57.14% |
| Jammi vs Law | 4–9 | 30.77% |
| Jammi vs Hwoarang | 6–6 | 50.00% |
| Jammi vs Steve | 6–6 | 50.00% |
| Jammi vs Eddy | 5–3 | 62.50% |
| Jammi vs Heihachi | 8–0 | 100.00% |
| Jammi vs Paul | 3–3 | 50.00% |
| Jammi vs Dragunov | 2–4 | 33.33% |
| Jammi vs Jin | 2–3 | 40.00% |
| Jammi vs Nina | 5–0 | 100.00% |
| Jammi vs Reina | 5–0 | 100.00% |
| Jammi vs Clive | 1–4 | 20.00% |
| Jammi vs Armor King | 2–3 | 40.00% |
| Jammi vs Lars | 1–2 | 33.33% |
| Jammi vs Alisa | 2–1 | 66.67% |
| Jammi vs Asuka | 2–0 | 100.00% |
| Jammi vs Devil Jin | 2–0 | 100.00% |
| Jammi vs Shaheen | 2–0 | 100.00% |
| Jammi vs Lidia | 2–0 | 100.00% |
| Jammi vs Lili | 0–1 | 0.00% |
| Jammi vs Leo | 0–1 | 0.00% |
| Jammi vs Jun | 0–1 | 0.00% |
| Jammi vs Anna | 0–1 | 0.00% |
| Jammi vs Fahkumram | 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.