| Ruben vs Law | 7–13 | 35.00% |
| Ruben vs Asuka | 10–10 | 50.00% |
| Ruben vs Steve | 8–11 | 42.11% |
| Ruben vs Jin | 2–16 | 11.11% |
| Ruben vs Reina | 10–7 | 58.82% |
| Ruben vs King | 2–13 | 13.33% |
| Ruben vs Hwoarang | 2–13 | 13.33% |
| Ruben vs Jun | 4–11 | 26.67% |
| Ruben vs Eddy | 1–13 | 7.14% |
| Ruben vs Kazuya | 1–11 | 8.33% |
| Ruben vs Victor | 1–10 | 9.09% |
| Ruben vs Yoshimitsu | 3–6 | 33.33% |
| Ruben vs Lili | 4–5 | 44.44% |
| Ruben vs Paul | 1–7 | 12.50% |
| Ruben vs Bryan | 5–3 | 62.50% |
| Ruben vs Xiaoyu | 2–5 | 28.57% |
| Ruben vs Devil Jin | 4–2 | 66.67% |
| Ruben vs Dragunov | 2–4 | 33.33% |
| Ruben vs Lars | 4–2 | 66.67% |
| Ruben vs Claudio | 2–4 | 33.33% |
| Ruben vs Nina | 2–4 | 33.33% |
| Ruben vs Lee | 3–3 | 50.00% |
| Ruben vs Jack-8 | 1–4 | 20.00% |
| Ruben vs Kuma | 2–2 | 50.00% |
| Ruben vs Azucena | 1–3 | 25.00% |
| Ruben vs Leo | 1–2 | 33.33% |
| Ruben vs Raven | 1–2 | 33.33% |
| Ruben vs Heihachi | 2–1 | 66.67% |
| Ruben vs Feng | 1–1 | 50.00% |
| Ruben vs Alisa | 0–2 | 0.00% |
| Ruben vs Shaheen | 0–2 | 0.00% |
| Ruben vs Panda | 2–0 | 100.00% |
| Ruben vs Zafina | 1–1 | 50.00% |
| Ruben vs Clive | 0–2 | 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.