| Ruby vs King | 10–11 | 47.62% |
| Ruby vs Jin | 10–9 | 52.63% |
| Ruby vs Asuka | 6–13 | 31.58% |
| Ruby vs Hwoarang | 13–5 | 72.22% |
| Ruby vs Dragunov | 6–11 | 35.29% |
| Ruby vs Reina | 6–9 | 40.00% |
| Ruby vs Steve | 7–7 | 50.00% |
| Ruby vs Jun | 2–11 | 15.38% |
| Ruby vs Kazuya | 6–7 | 46.15% |
| Ruby vs Law | 3–9 | 25.00% |
| Ruby vs Bryan | 5–7 | 41.67% |
| Ruby vs Lili | 7–4 | 63.64% |
| Ruby vs Yoshimitsu | 2–7 | 22.22% |
| Ruby vs Eddy | 1–8 | 11.11% |
| Ruby vs Paul | 4–5 | 44.44% |
| Ruby vs Nina | 1–8 | 11.11% |
| Ruby vs Azucena | 2–6 | 25.00% |
| Ruby vs Panda | 4–3 | 57.14% |
| Ruby vs Xiaoyu | 4–3 | 57.14% |
| Ruby vs Lee | 2–5 | 28.57% |
| Ruby vs Devil Jin | 1–5 | 16.67% |
| Ruby vs Zafina | 3–3 | 50.00% |
| Ruby vs Raven | 4–2 | 66.67% |
| Ruby vs Lidia | 2–4 | 33.33% |
| Ruby vs Feng | 1–4 | 20.00% |
| Ruby vs Lars | 1–4 | 20.00% |
| Ruby vs Leroy | 3–2 | 60.00% |
| Ruby vs Jack-8 | 1–3 | 25.00% |
| Ruby vs Alisa | 3–1 | 75.00% |
| Ruby vs Kuma | 1–3 | 25.00% |
| Ruby vs Victor | 1–2 | 33.33% |
| Ruby vs Claudio | 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.