| Cassie vs Jin | 32–36 | 47.06% |
| Cassie vs Law | 32–25 | 56.14% |
| Cassie vs Steve | 19–24–1 | 44.19% |
| Cassie vs Dragunov | 16–26–1 | 38.10% |
| Cassie vs Kazuya | 23–19 | 54.76% |
| Cassie vs Reina | 24–16 | 60.00% |
| Cassie vs Bryan | 20–18 | 52.63% |
| Cassie vs Paul | 15–18 | 45.45% |
| Cassie vs Hwoarang | 15–18 | 45.45% |
| Cassie vs Heihachi | 17–16 | 51.52% |
| Cassie vs King | 20–12 | 62.50% |
| Cassie vs Lidia | 15–13 | 53.57% |
| Cassie vs Nina | 19–8 | 70.37% |
| Cassie vs Lili | 10–16 | 38.46% |
| Cassie vs Alisa | 14–11 | 56.00% |
| Cassie vs Armor King | 12–13 | 48.00% |
| Cassie vs Anna | 11–11 | 50.00% |
| Cassie vs Yoshimitsu | 12–9 | 57.14% |
| Cassie vs Jun | 12–9 | 57.14% |
| Cassie vs Fahkumram | 3–18 | 14.29% |
| Cassie vs Lee | 4–16 | 20.00% |
| Cassie vs Devil Jin | 9–10 | 47.37% |
| Cassie vs Leo | 9–10 | 47.37% |
| Cassie vs Clive | 9–10 | 47.37% |
| Cassie vs Miary Zo | 7–12 | 36.84% |
| Cassie vs Jack-8 | 4–14 | 22.22% |
| Cassie vs Azucena | 6–12 | 33.33% |
| Cassie vs Eddy | 10–8 | 55.56% |
| Cassie vs Asuka | 7–10 | 41.18% |
| Cassie vs Claudio | 8–9 | 47.06% |
| Cassie vs Victor | 13–4 | 76.47% |
| Cassie vs Lars | 7–5 | 58.33% |
| Cassie vs Kuma | 6–6 | 50.00% |
| Cassie vs Xiaoyu | 6–4 | 60.00% |
| Cassie vs Zafina | 5–4 | 55.56% |
| Cassie vs Feng | 1–6 | 14.29% |
| Cassie vs Leroy | 2–5 | 28.57% |
| Cassie vs Raven | 2–5 | 28.57% |
| Cassie vs Shaheen | 4–2 | 66.67% |
| Cassie vs Panda | 2–3 | 40.00% |
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.