| cassio vs King | 83–119 | 41.09% |
| cassio vs Jin | 84–116 | 42.00% |
| cassio vs Reina | 84–85 | 49.70% |
| cassio vs Kazuya | 72–79 | 47.68% |
| cassio vs Steve | 69–66 | 51.11% |
| cassio vs Bryan | 49–85 | 36.57% |
| cassio vs Eddy | 47–65 | 41.96% |
| cassio vs Asuka | 54–55 | 49.54% |
| cassio vs Fahkumram | 45–58 | 43.69% |
| cassio vs Hwoarang | 43–58 | 42.57% |
| cassio vs Dragunov | 43–51 | 45.74% |
| cassio vs Devil Jin | 38–46 | 45.24% |
| cassio vs Yoshimitsu | 32–49 | 39.51% |
| cassio vs Lili | 26–55 | 32.10% |
| cassio vs Law | 29–49 | 37.18% |
| cassio vs Azucena | 31–37 | 45.59% |
| cassio vs Paul | 19–45 | 29.69% |
| cassio vs Heihachi | 24–38 | 38.71% |
| cassio vs Lidia | 20–38 | 34.48% |
| cassio vs Clive | 29–29 | 50.00% |
| cassio vs Victor | 17–36 | 32.08% |
| cassio vs Jack-8 | 18–29 | 38.30% |
| cassio vs Armor King | 21–26 | 44.68% |
| cassio vs Jun | 22–22 | 50.00% |
| cassio vs Xiaoyu | 17–26 | 39.53% |
| cassio vs Anna | 12–23 | 34.29% |
| cassio vs Feng | 15–14 | 51.72% |
| cassio vs Nina | 10–18 | 35.71% |
| cassio vs Leroy | 11–15 | 42.31% |
| cassio vs Raven | 11–14 | 44.00% |
| cassio vs Lee | 8–16 | 33.33% |
| cassio vs Claudio | 7–13 | 35.00% |
| cassio vs Leo | 8–11 | 42.11% |
| cassio vs Lars | 5–12 | 29.41% |
| cassio vs Kuma | 9–8 | 52.94% |
| cassio vs Alisa | 2–13 | 13.33% |
| cassio vs Shaheen | 4–10 | 28.57% |
| cassio vs Panda | 0–4 | 0.00% |
| cassio vs Zafina | 0–2 | 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.