| Castor vs Kazuya | 101–134 | 42.98% |
| Castor vs Jin | 93–101 | 47.94% |
| Castor vs Law | 91–94 | 49.19% |
| Castor vs Armor King | 82–99 | 45.30% |
| Castor vs Hwoarang | 52–72 | 41.94% |
| Castor vs Bryan | 50–65 | 43.48% |
| Castor vs King | 52–61 | 46.02% |
| Castor vs Paul | 53–54 | 49.53% |
| Castor vs Yoshimitsu | 54–50 | 51.92% |
| Castor vs Jun | 60–42 | 58.82% |
| Castor vs Fahkumram | 51–50 | 50.50% |
| Castor vs Miary Zo | 38–49 | 43.68% |
| Castor vs Steve | 47–38 | 55.29% |
| Castor vs Heihachi | 41–44 | 48.24% |
| Castor vs Reina | 42–40 | 51.22% |
| Castor vs Nina | 46–34 | 57.50% |
| Castor vs Eddy | 46–34 | 57.50% |
| Castor vs Asuka | 33–34 | 49.25% |
| Castor vs Lili | 23–44 | 34.33% |
| Castor vs Alisa | 42–25 | 62.69% |
| Castor vs Xiaoyu | 27–39 | 40.91% |
| Castor vs Anna | 35–31 | 53.03% |
| Castor vs Dragunov | 26–37 | 41.27% |
| Castor vs Lee | 20–35 | 36.36% |
| Castor vs Azucena | 22–30 | 42.31% |
| Castor vs Devil Jin | 25–24 | 51.02% |
| Castor vs Clive | 23–25 | 47.92% |
| Castor vs Lidia | 17–29 | 36.96% |
| Castor vs Feng | 18–23 | 43.90% |
| Castor vs Lars | 17–18 | 48.57% |
| Castor vs Victor | 14–19 | 42.42% |
| Castor vs Leroy | 15–16 | 48.39% |
| Castor vs Claudio | 8–15 | 34.78% |
| Castor vs Jack-8 | 10–8 | 55.56% |
| Castor vs Kuma | 8–8 | 50.00% |
| Castor vs Zafina | 8–6 | 57.14% |
| Castor vs Shaheen | 4–7 | 36.36% |
| Castor vs Raven | 4–7 | 36.36% |
| Castor vs Leo | 7–2 | 77.78% |
| Castor vs Panda | 3–2 | 60.00% |
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.