| Castro vs King | 15–18 | 45.45% |
| Castro vs Reina | 11–14 | 44.00% |
| Castro vs Steve | 13–11 | 54.17% |
| Castro vs Jin | 10–12 | 45.45% |
| Castro vs Hwoarang | 4–15 | 21.05% |
| Castro vs Kazuya | 9–10 | 47.37% |
| Castro vs Bryan | 7–10 | 41.18% |
| Castro vs Law | 10–6 | 62.50% |
| Castro vs Yoshimitsu | 5–10 | 33.33% |
| Castro vs Lili | 6–9 | 40.00% |
| Castro vs Asuka | 7–7 | 50.00% |
| Castro vs Jun | 4–10 | 28.57% |
| Castro vs Azucena | 8–6 | 57.14% |
| Castro vs Eddy | 9–5 | 64.29% |
| Castro vs Heihachi | 5–9 | 35.71% |
| Castro vs Clive | 4–10 | 28.57% |
| Castro vs Anna | 5–9 | 35.71% |
| Castro vs Fahkumram | 4–9 | 30.77% |
| Castro vs Armor King | 1–10 | 9.09% |
| Castro vs Paul | 3–7 | 30.00% |
| Castro vs Jack-8 | 5–5 | 50.00% |
| Castro vs Raven | 3–7 | 30.00% |
| Castro vs Lars | 3–5 | 37.50% |
| Castro vs Dragunov | 3–3 | 50.00% |
| Castro vs Xiaoyu | 1–4 | 20.00% |
| Castro vs Feng | 4–1 | 80.00% |
| Castro vs Leo | 0–5 | 0.00% |
| Castro vs Alisa | 1–4 | 20.00% |
| Castro vs Shaheen | 4–1 | 80.00% |
| Castro vs Nina | 4–1 | 80.00% |
| Castro vs Lee | 2–3 | 40.00% |
| Castro vs Panda | 0–5 | 0.00% |
| Castro vs Victor | 2–3 | 40.00% |
| Castro vs Lidia | 4–1 | 80.00% |
| Castro vs Leroy | 2–2 | 50.00% |
| Castro vs Devil Jin | 1–2 | 33.33% |
| Castro vs Claudio | 1–2 | 33.33% |
| Castro vs Kuma | 0–1 | 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.