| Ruby_____ vs King | 43–49 | 46.74% |
| Ruby_____ vs Lili | 40–43 | 48.19% |
| Ruby_____ vs Kazuya | 43–39 | 52.44% |
| Ruby_____ vs Asuka | 34–46 | 42.50% |
| Ruby_____ vs Bryan | 37–40 | 48.05% |
| Ruby_____ vs Reina | 30–30 | 50.00% |
| Ruby_____ vs Law | 34–22 | 60.71% |
| Ruby_____ vs Hwoarang | 31–25 | 55.36% |
| Ruby_____ vs Jin | 30–24 | 55.56% |
| Ruby_____ vs Steve | 28–24 | 53.85% |
| Ruby_____ vs Dragunov | 21–31 | 40.38% |
| Ruby_____ vs Xiaoyu | 29–22 | 56.86% |
| Ruby_____ vs Yoshimitsu | 20–28 | 41.67% |
| Ruby_____ vs Victor | 29–19 | 60.42% |
| Ruby_____ vs Paul | 34–13 | 72.34% |
| Ruby_____ vs Alisa | 12–32 | 27.27% |
| Ruby_____ vs Lars | 19–24 | 44.19% |
| Ruby_____ vs Azucena | 23–17 | 57.50% |
| Ruby_____ vs Lidia | 18–18 | 50.00% |
| Ruby_____ vs Leroy | 20–13 | 60.61% |
| Ruby_____ vs Jun | 22–10 | 68.75% |
| Ruby_____ vs Leo | 13–18 | 41.94% |
| Ruby_____ vs Nina | 11–20 | 35.48% |
| Ruby_____ vs Eddy | 11–19 | 36.67% |
| Ruby_____ vs Feng | 17–12 | 58.62% |
| Ruby_____ vs Devil Jin | 14–9 | 60.87% |
| Ruby_____ vs Jack-8 | 11–10 | 52.38% |
| Ruby_____ vs Heihachi | 7–13 | 35.00% |
| Ruby_____ vs Lee | 8–11 | 42.11% |
| Ruby_____ vs Shaheen | 9–9 | 50.00% |
| Ruby_____ vs Claudio | 7–9 | 43.75% |
| Ruby_____ vs Kuma | 5–11 | 31.25% |
| Ruby_____ vs Clive | 6–9 | 40.00% |
| Ruby_____ vs Raven | 8–6 | 57.14% |
| Ruby_____ vs Zafina | 3–10 | 23.08% |
| Ruby_____ vs Panda | 3–5 | 37.50% |
| Ruby_____ vs Miary Zo | 3–4 | 42.86% |
| Ruby_____ vs Anna | 1–2 | 33.33% |
| Ruby_____ vs Armor King | 1–2 | 33.33% |
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.