| Ruben vs Jin | 37–49 | 43.02% |
| Ruben vs Kazuya | 31–26 | 54.39% |
| Ruben vs Yoshimitsu | 23–26 | 46.94% |
| Ruben vs Hwoarang | 28–17 | 62.22% |
| Ruben vs Reina | 20–23 | 46.51% |
| Ruben vs King | 21–20 | 51.22% |
| Ruben vs Steve | 26–15 | 63.41% |
| Ruben vs Eddy | 16–16 | 50.00% |
| Ruben vs Bryan | 15–16 | 48.39% |
| Ruben vs Nina | 17–8 | 68.00% |
| Ruben vs Paul | 18–6 | 75.00% |
| Ruben vs Jun | 13–11 | 54.17% |
| Ruben vs Law | 12–11 | 52.17% |
| Ruben vs Dragunov | 13–6 | 68.42% |
| Ruben vs Lars | 9–9 | 50.00% |
| Ruben vs Devil Jin | 6–11 | 35.29% |
| Ruben vs Lili | 13–2 | 86.67% |
| Ruben vs Feng | 7–7 | 50.00% |
| Ruben vs Asuka | 7–5 | 58.33% |
| Ruben vs Lee | 10–2 | 83.33% |
| Ruben vs Alisa | 9–2 | 81.82% |
| Ruben vs Azucena | 7–4 | 63.64% |
| Ruben vs Victor | 9–2 | 81.82% |
| Ruben vs Zafina | 4–6 | 40.00% |
| Ruben vs Heihachi | 4–3 | 57.14% |
| Ruben vs Lidia | 4–2 | 66.67% |
| Ruben vs Leo | 4–1 | 80.00% |
| Ruben vs Xiaoyu | 2–1 | 66.67% |
| Ruben vs Shaheen | 1–2 | 33.33% |
| Ruben vs Panda | 1–2 | 33.33% |
| Ruben vs Raven | 2–1 | 66.67% |
| Ruben vs Anna | 2–1 | 66.67% |
| Ruben vs Kuma | 2–0 | 100.00% |
| Ruben vs Leroy | 2–0 | 100.00% |
| Ruben vs Jack-8 | 0–1 | 0.00% |
| Ruben vs Clive | 1–0 | 100.00% |
| Ruben vs Miary Zo | 1–0 | 100.00% |
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.