| Kassandra vs Jin | 8–5 | 61.54% |
| Kassandra vs Devil Jin | 10–1 | 90.91% |
| Kassandra vs King | 5–3 | 62.50% |
| Kassandra vs Kazuya | 7–1 | 87.50% |
| Kassandra vs Lili | 4–3 | 57.14% |
| Kassandra vs Alisa | 6–1 | 85.71% |
| Kassandra vs Dragunov | 3–3 | 50.00% |
| Kassandra vs Lars | 4–2 | 66.67% |
| Kassandra vs Hwoarang | 4–1 | 80.00% |
| Kassandra vs Paul | 1–2 | 33.33% |
| Kassandra vs Feng | 2–1 | 66.67% |
| Kassandra vs Reina | 2–1 | 66.67% |
| Kassandra vs Azucena | 2–1 | 66.67% |
| Kassandra vs Victor | 3–0 | 100.00% |
| Kassandra vs Eddy | 1–2 | 33.33% |
| Kassandra vs Yoshimitsu | 2–0 | 100.00% |
| Kassandra vs Bryan | 2–0 | 100.00% |
| Kassandra vs Steve | 2–0 | 100.00% |
| Kassandra vs Leo | 0–2 | 0.00% |
| Kassandra vs Nina | 2–0 | 100.00% |
| Kassandra vs Lee | 2–0 | 100.00% |
| Kassandra vs Jun | 2–0 | 100.00% |
| Kassandra vs Raven | 2–0 | 100.00% |
| Kassandra vs Law | 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.