| Casas vs King | 14–2 | 87.50% |
| Casas vs Yoshimitsu | 5–11 | 31.25% |
| Casas vs Law | 8–7 | 53.33% |
| Casas vs Hwoarang | 7–7 | 50.00% |
| Casas vs Jin | 9–4 | 69.23% |
| Casas vs Dragunov | 8–3 | 72.73% |
| Casas vs Kazuya | 6–4 | 60.00% |
| Casas vs Feng | 4–6 | 40.00% |
| Casas vs Lili | 6–2–1 | 75.00% |
| Casas vs Devil Jin | 2–6 | 25.00% |
| Casas vs Reina | 5–3 | 62.50% |
| Casas vs Xiaoyu | 4–3 | 57.14% |
| Casas vs Paul | 4–2 | 66.67% |
| Casas vs Shaheen | 2–4 | 33.33% |
| Casas vs Nina | 4–2 | 66.67% |
| Casas vs Steve | 3–2 | 60.00% |
| Casas vs Jack-8 | 2–3 | 40.00% |
| Casas vs Azucena | 4–1 | 80.00% |
| Casas vs Eddy | 1–4 | 20.00% |
| Casas vs Kuma | 0–4 | 0.00% |
| Casas vs Victor | 2–2 | 50.00% |
| Casas vs Lee | 2–1 | 66.67% |
| Casas vs Jun | 3–0 | 100.00% |
| Casas vs Lars | 0–1 | 0.00% |
| Casas vs Claudio | 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.