| Ruben vs Jin | 9–12 | 42.86% |
| Ruben vs Reina | 9–12 | 42.86% |
| Ruben vs Lidia | 6–12 | 33.33% |
| Ruben vs Kazuya | 7–5 | 58.33% |
| Ruben vs Yoshimitsu | 4–7 | 36.36% |
| Ruben vs Hwoarang | 4–7 | 36.36% |
| Ruben vs Bryan | 2–9 | 18.18% |
| Ruben vs Steve | 3–7 | 30.00% |
| Ruben vs Law | 4–4 | 50.00% |
| Ruben vs King | 5–3 | 62.50% |
| Ruben vs Kuma | 3–5 | 37.50% |
| Ruben vs Feng | 3–4 | 42.86% |
| Ruben vs Paul | 3–3 | 50.00% |
| Ruben vs Lili | 4–2 | 66.67% |
| Ruben vs Claudio | 2–4 | 33.33% |
| Ruben vs Eddy | 1–5 | 16.67% |
| Ruben vs Jack-8 | 2–3 | 40.00% |
| Ruben vs Dragunov | 3–2 | 60.00% |
| Ruben vs Nina | 2–3 | 40.00% |
| Ruben vs Zafina | 3–2 | 60.00% |
| Ruben vs Jun | 3–2 | 60.00% |
| Ruben vs Victor | 4–1 | 80.00% |
| Ruben vs Raven | 3–2 | 60.00% |
| Ruben vs Shaheen | 0–4 | 0.00% |
| Ruben vs Devil Jin | 0–3 | 0.00% |
| Ruben vs Alisa | 2–1 | 66.67% |
| Ruben vs Xiaoyu | 2–0 | 100.00% |
| Ruben vs Leo | 2–0 | 100.00% |
| Ruben vs Lars | 1–1 | 50.00% |
| Ruben vs Azucena | 0–2 | 0.00% |
| Ruben vs Asuka | 0–1 | 0.00% |
| Ruben vs Leroy | 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.