| Castor vs Kazuya | 4–16 | 20.00% |
| Castor vs Jin | 1–8 | 11.11% |
| Castor vs Steve | 1–8 | 11.11% |
| Castor vs Devil Jin | 2–5 | 28.57% |
| Castor vs Victor | 2–5 | 28.57% |
| Castor vs Hwoarang | 2–4 | 33.33% |
| Castor vs Lili | 2–4 | 33.33% |
| Castor vs Lars | 2–4 | 33.33% |
| Castor vs King | 3–2 | 60.00% |
| Castor vs Jack-8 | 3–2 | 60.00% |
| Castor vs Reina | 1–4 | 20.00% |
| Castor vs Yoshimitsu | 0–4 | 0.00% |
| Castor vs Dragunov | 0–4 | 0.00% |
| Castor vs Lee | 2–2 | 50.00% |
| Castor vs Jun | 0–4 | 0.00% |
| Castor vs Azucena | 2–2 | 50.00% |
| Castor vs Law | 0–3 | 0.00% |
| Castor vs Feng | 2–1 | 66.67% |
| Castor vs Fahkumram | 1–2 | 33.33% |
| Castor vs Nina | 0–2 | 0.00% |
| Castor vs Zafina | 0–2 | 0.00% |
| Castor vs Raven | 0–2 | 0.00% |
| Castor vs Eddy | 0–2 | 0.00% |
| Castor vs Clive | 0–2 | 0.00% |
| Castor vs Bryan | 0–1 | 0.00% |
| Castor vs Alisa | 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.