| Castru vs Kazuya | 85–101 | 45.70% |
| Castru vs Bryan | 92–80 | 53.49% |
| Castru vs Jin | 74–57 | 56.49% |
| Castru vs Heihachi | 63–52 | 54.78% |
| Castru vs King | 57–46 | 55.34% |
| Castru vs Reina | 48–50 | 48.98% |
| Castru vs Hwoarang | 35–57 | 38.04% |
| Castru vs Paul | 36–51 | 41.38% |
| Castru vs Law | 36–49 | 42.35% |
| Castru vs Dragunov | 39–41 | 48.75% |
| Castru vs Yoshimitsu | 36–38 | 48.65% |
| Castru vs Lili | 36–38 | 48.65% |
| Castru vs Devil Jin | 30–40 | 42.86% |
| Castru vs Lee | 31–38 | 44.93% |
| Castru vs Steve | 33–32 | 50.77% |
| Castru vs Feng | 28–35 | 44.44% |
| Castru vs Azucena | 41–21 | 66.13% |
| Castru vs Jun | 35–22 | 61.40% |
| Castru vs Nina | 27–25 | 51.92% |
| Castru vs Asuka | 25–23 | 52.08% |
| Castru vs Xiaoyu | 24–20 | 54.55% |
| Castru vs Lidia | 22–21–1 | 51.16% |
| Castru vs Lars | 14–21 | 40.00% |
| Castru vs Raven | 13–16 | 44.83% |
| Castru vs Leo | 16–12 | 57.14% |
| Castru vs Eddy | 17–11 | 60.71% |
| Castru vs Claudio | 15–12 | 55.56% |
| Castru vs Leroy | 10–13 | 43.48% |
| Castru vs Victor | 12–11 | 52.17% |
| Castru vs Alisa | 6–15 | 28.57% |
| Castru vs Jack-8 | 6–12 | 33.33% |
| Castru vs Shaheen | 12–4 | 75.00% |
| Castru vs Zafina | 8–7 | 53.33% |
| Castru vs Anna | 6–7 | 46.15% |
| Castru vs Armor King | 6–6 | 50.00% |
| Castru vs Clive | 2–3 | 40.00% |
| Castru vs Kuma | 2–2 | 50.00% |
| Castru vs Panda | 1–1 | 50.00% |
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.