| Kassaya vs King | 17–59 | 22.37% |
| Kassaya vs Kazuya | 24–44 | 35.29% |
| Kassaya vs Jin | 14–47 | 22.95% |
| Kassaya vs Reina | 15–30 | 33.33% |
| Kassaya vs Lili | 9–33 | 21.43% |
| Kassaya vs Steve | 15–25 | 37.50% |
| Kassaya vs Hwoarang | 7–30 | 18.92% |
| Kassaya vs Eddy | 10–22 | 31.25% |
| Kassaya vs Law | 8–23 | 25.81% |
| Kassaya vs Fahkumram | 4–27 | 12.90% |
| Kassaya vs Dragunov | 6–24 | 20.00% |
| Kassaya vs Xiaoyu | 11–14 | 44.00% |
| Kassaya vs Jun | 6–16 | 27.27% |
| Kassaya vs Asuka | 7–13 | 35.00% |
| Kassaya vs Devil Jin | 10–9 | 52.63% |
| Kassaya vs Yoshimitsu | 7–11 | 38.89% |
| Kassaya vs Jack-8 | 3–15 | 16.67% |
| Kassaya vs Leroy | 7–11 | 38.89% |
| Kassaya vs Bryan | 2–14 | 12.50% |
| Kassaya vs Anna | 4–12 | 25.00% |
| Kassaya vs Lars | 4–11 | 26.67% |
| Kassaya vs Leo | 2–12 | 14.29% |
| Kassaya vs Claudio | 1–13 | 7.14% |
| Kassaya vs Nina | 2–11 | 15.38% |
| Kassaya vs Lee | 1–12 | 7.69% |
| Kassaya vs Heihachi | 4–9 | 30.77% |
| Kassaya vs Clive | 3–9 | 25.00% |
| Kassaya vs Victor | 4–5 | 44.44% |
| Kassaya vs Paul | 2–5 | 28.57% |
| Kassaya vs Alisa | 3–4 | 42.86% |
| Kassaya vs Feng | 4–1 | 80.00% |
| Kassaya vs Azucena | 2–3 | 40.00% |
| Kassaya vs Raven | 0–4 | 0.00% |
| Kassaya vs Lidia | 1–2 | 33.33% |
| Kassaya vs Zafina | 0–2 | 0.00% |
| Kassaya vs Kuma | 1–0 | 100.00% |
| Kassaya vs Panda | 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.