| Professor Casey vs King | 6–14 | 30.00% |
| Professor Casey vs Steve | 8–8 | 50.00% |
| Professor Casey vs Jin | 6–9 | 40.00% |
| Professor Casey vs Reina | 6–9 | 40.00% |
| Professor Casey vs Law | 3–10 | 23.08% |
| Professor Casey vs Hwoarang | 1–11 | 8.33% |
| Professor Casey vs Xiaoyu | 4–8 | 33.33% |
| Professor Casey vs Kazuya | 4–7 | 36.36% |
| Professor Casey vs Lili | 7–4 | 63.64% |
| Professor Casey vs Leo | 6–5 | 54.55% |
| Professor Casey vs Armor King | 9–1 | 90.00% |
| Professor Casey vs Nina | 1–8 | 11.11% |
| Professor Casey vs Jun | 5–4 | 55.56% |
| Professor Casey vs Devil Jin | 2–6 | 25.00% |
| Professor Casey vs Azucena | 4–4 | 50.00% |
| Professor Casey vs Bryan | 3–4 | 42.86% |
| Professor Casey vs Feng | 4–3 | 57.14% |
| Professor Casey vs Lars | 2–5 | 28.57% |
| Professor Casey vs Lee | 2–4 | 33.33% |
| Professor Casey vs Dragunov | 0–5 | 0.00% |
| Professor Casey vs Leroy | 1–4 | 20.00% |
| Professor Casey vs Victor | 1–4 | 20.00% |
| Professor Casey vs Eddy | 2–3 | 40.00% |
| Professor Casey vs Fahkumram | 2–3 | 40.00% |
| Professor Casey vs Miary Zo | 3–2 | 60.00% |
| Professor Casey vs Yoshimitsu | 2–2 | 50.00% |
| Professor Casey vs Asuka | 2–2 | 50.00% |
| Professor Casey vs Kuma | 4–0 | 100.00% |
| Professor Casey vs Panda | 4–0 | 100.00% |
| Professor Casey vs Raven | 3–1 | 75.00% |
| Professor Casey vs Zafina | 3–0 | 100.00% |
| Professor Casey vs Lidia | 1–2 | 33.33% |
| Professor Casey vs Heihachi | 0–3 | 0.00% |
| Professor Casey vs Alisa | 1–1 | 50.00% |
| Professor Casey vs Claudio | 0–2 | 0.00% |
| Professor Casey vs Clive | 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.