| Qastle vs Jin | 16–6 | 72.73% |
| Qastle vs King | 12–7 | 63.16% |
| Qastle vs Reina | 12–7 | 63.16% |
| Qastle vs Law | 13–5 | 72.22% |
| Qastle vs Bryan | 15–2 | 88.24% |
| Qastle vs Kazuya | 14–2 | 87.50% |
| Qastle vs Hwoarang | 11–4 | 73.33% |
| Qastle vs Yoshimitsu | 12–2 | 85.71% |
| Qastle vs Steve | 13–1 | 92.86% |
| Qastle vs Asuka | 13–1 | 92.86% |
| Qastle vs Lili | 12–2 | 85.71% |
| Qastle vs Lee | 5–5 | 50.00% |
| Qastle vs Xiaoyu | 5–4 | 55.56% |
| Qastle vs Lars | 8–1 | 88.89% |
| Qastle vs Dragunov | 8–0 | 100.00% |
| Qastle vs Eddy | 6–2 | 75.00% |
| Qastle vs Devil Jin | 5–2 | 71.43% |
| Qastle vs Jun | 3–4 | 42.86% |
| Qastle vs Jack-8 | 4–2 | 66.67% |
| Qastle vs Raven | 4–2 | 66.67% |
| Qastle vs Paul | 4–1 | 80.00% |
| Qastle vs Alisa | 3–2 | 60.00% |
| Qastle vs Claudio | 2–3 | 40.00% |
| Qastle vs Leroy | 4–1 | 80.00% |
| Qastle vs Heihachi | 2–3 | 40.00% |
| Qastle vs Anna | 4–1 | 80.00% |
| Qastle vs Azucena | 3–1 | 75.00% |
| Qastle vs Lidia | 4–0 | 100.00% |
| Qastle vs Leo | 2–1 | 66.67% |
| Qastle vs Shaheen | 2–1 | 66.67% |
| Qastle vs Kuma | 2–1 | 66.67% |
| Qastle vs Fahkumram | 3–0 | 100.00% |
| Qastle vs Armor King | 2–1 | 66.67% |
| Qastle vs Feng | 2–0 | 100.00% |
| Qastle vs Zafina | 2–0 | 100.00% |
| Qastle vs Clive | 0–2 | 0.00% |
| Qastle vs Victor | 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.