| Ruby vs Reina | 3–6 | 33.33% |
| Ruby vs Jin | 1–7 | 12.50% |
| Ruby vs Claudio | 1–6 | 14.29% |
| Ruby vs Eddy | 0–7 | 0.00% |
| Ruby vs King | 1–5 | 16.67% |
| Ruby vs Dragunov | 1–5 | 16.67% |
| Ruby vs Jun | 1–5 | 16.67% |
| Ruby vs Victor | 3–3 | 50.00% |
| Ruby vs Yoshimitsu | 2–3 | 40.00% |
| Ruby vs Hwoarang | 3–2 | 60.00% |
| Ruby vs Leo | 1–4 | 20.00% |
| Ruby vs Lee | 3–2 | 60.00% |
| Ruby vs Azucena | 3–2 | 60.00% |
| Ruby vs Bryan | 0–4 | 0.00% |
| Ruby vs Kazuya | 2–2 | 50.00% |
| Ruby vs Leroy | 1–3 | 25.00% |
| Ruby vs Xiaoyu | 1–2 | 33.33% |
| Ruby vs Steve | 0–3 | 0.00% |
| Ruby vs Nina | 1–2 | 33.33% |
| Ruby vs Lili | 1–1 | 50.00% |
| Ruby vs Lars | 0–2 | 0.00% |
| Ruby vs Lidia | 0–2 | 0.00% |
| Ruby vs Paul | 1–0 | 100.00% |
| Ruby vs Law | 0–1 | 0.00% |
| Ruby vs Jack-8 | 0–1 | 0.00% |
| Ruby vs Asuka | 1–0 | 100.00% |
| Ruby vs Devil Jin | 0–1 | 0.00% |
| Ruby vs Feng | 0–1 | 0.00% |
| Ruby vs Alisa | 0–1 | 0.00% |
| Ruby vs Panda | 0–1 | 0.00% |
| Ruby vs Raven | 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.