| RubyChan vs Reina | 19–8 | 70.37% |
| RubyChan vs Heihachi | 9–17 | 34.62% |
| RubyChan vs King | 7–10 | 41.18% |
| RubyChan vs Bryan | 8–8 | 50.00% |
| RubyChan vs Hwoarang | 8–4 | 66.67% |
| RubyChan vs Kazuya | 3–8 | 27.27% |
| RubyChan vs Jin | 3–7 | 30.00% |
| RubyChan vs Asuka | 3–7 | 30.00% |
| RubyChan vs Lars | 3–7 | 30.00% |
| RubyChan vs Yoshimitsu | 5–4 | 55.56% |
| RubyChan vs Steve | 5–4 | 55.56% |
| RubyChan vs Dragunov | 6–2 | 75.00% |
| RubyChan vs Eddy | 3–5 | 37.50% |
| RubyChan vs Law | 5–2 | 71.43% |
| RubyChan vs Lili | 4–3 | 57.14% |
| RubyChan vs Lidia | 6–1 | 85.71% |
| RubyChan vs Paul | 4–1 | 80.00% |
| RubyChan vs Claudio | 3–2 | 60.00% |
| RubyChan vs Kuma | 4–1 | 80.00% |
| RubyChan vs Jun | 3–2 | 60.00% |
| RubyChan vs Alisa | 1–3 | 25.00% |
| RubyChan vs Shaheen | 2–2 | 50.00% |
| RubyChan vs Lee | 4–0 | 100.00% |
| RubyChan vs Victor | 3–0 | 100.00% |
| RubyChan vs Jack-8 | 0–2 | 0.00% |
| RubyChan vs Devil Jin | 0–2 | 0.00% |
| RubyChan vs Leroy | 0–2 | 0.00% |
| RubyChan vs Zafina | 0–1 | 0.00% |
| RubyChan vs Raven | 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.