| QASSI vs Jin | 10–14 | 41.67% |
| QASSI vs Reina | 15–7 | 68.18% |
| QASSI vs Kazuya | 10–10 | 50.00% |
| QASSI vs Law | 8–10 | 44.44% |
| QASSI vs King | 12–6 | 66.67% |
| QASSI vs Yoshimitsu | 14–4 | 77.78% |
| QASSI vs Bryan | 13–5 | 72.22% |
| QASSI vs Lili | 8–4 | 66.67% |
| QASSI vs Eddy | 7–5 | 58.33% |
| QASSI vs Hwoarang | 5–4 | 55.56% |
| QASSI vs Devil Jin | 4–4 | 50.00% |
| QASSI vs Azucena | 5–3 | 62.50% |
| QASSI vs Paul | 5–2 | 71.43% |
| QASSI vs Xiaoyu | 3–4 | 42.86% |
| QASSI vs Asuka | 4–3 | 57.14% |
| QASSI vs Jun | 3–4 | 42.86% |
| QASSI vs Lars | 2–4 | 33.33% |
| QASSI vs Shaheen | 4–2 | 66.67% |
| QASSI vs Nina | 1–5 | 16.67% |
| QASSI vs Alisa | 1–4 | 20.00% |
| QASSI vs Jack-8 | 0–4 | 0.00% |
| QASSI vs Dragunov | 4–0 | 100.00% |
| QASSI vs Lee | 2–2 | 50.00% |
| QASSI vs Raven | 3–1 | 75.00% |
| QASSI vs Lidia | 0–4 | 0.00% |
| QASSI vs Kuma | 1–2 | 33.33% |
| QASSI vs Steve | 2–0 | 100.00% |
| QASSI vs Zafina | 1–1 | 50.00% |
| QASSI vs Panda | 1–0 | 100.00% |
| QASSI vs Leroy | 1–0 | 100.00% |
| QASSI vs Feng | 1–0 | 100.00% |
| QASSI vs Victor | 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.