| Jamma2189 vs Steve | 7–5 | 58.33% |
| Jamma2189 vs Reina | 5–5 | 50.00% |
| Jamma2189 vs Lili | 4–5 | 44.44% |
| Jamma2189 vs King | 2–6 | 25.00% |
| Jamma2189 vs Jin | 5–3 | 62.50% |
| Jamma2189 vs Hwoarang | 4–3 | 57.14% |
| Jamma2189 vs Alisa | 4–3 | 57.14% |
| Jamma2189 vs Lee | 2–4 | 33.33% |
| Jamma2189 vs Raven | 2–4 | 33.33% |
| Jamma2189 vs Dragunov | 1–4 | 20.00% |
| Jamma2189 vs Heihachi | 4–1 | 80.00% |
| Jamma2189 vs Lars | 0–4 | 0.00% |
| Jamma2189 vs Fahkumram | 4–0 | 100.00% |
| Jamma2189 vs Nina | 1–2 | 33.33% |
| Jamma2189 vs Lidia | 1–2 | 33.33% |
| Jamma2189 vs Clive | 1–2 | 33.33% |
| Jamma2189 vs Miary Zo | 1–2 | 33.33% |
| Jamma2189 vs Yoshimitsu | 1–1 | 50.00% |
| Jamma2189 vs Bryan | 0–2 | 0.00% |
| Jamma2189 vs Claudio | 2–0 | 100.00% |
| Jamma2189 vs Shaheen | 2–0 | 100.00% |
| Jamma2189 vs Leroy | 0–2 | 0.00% |
| Jamma2189 vs Jun | 0–2 | 0.00% |
| Jamma2189 vs Eddy | 2–0 | 100.00% |
| Jamma2189 vs Kazuya | 0–0–1 | N/A |
| Jamma2189 vs Devil Jin | 1–0 | 100.00% |
| Jamma2189 vs Kuma | 0–1 | 0.00% |
| Jamma2189 vs Zafina | 0–1 | 0.00% |
| Jamma2189 vs Azucena | 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.