| RuiZ vs Reina | 14–7 | 66.67% |
| RuiZ vs King | 6–11 | 35.29% |
| RuiZ vs Steve | 7–9 | 43.75% |
| RuiZ vs Jin | 9–6 | 60.00% |
| RuiZ vs Kazuya | 7–6 | 53.85% |
| RuiZ vs Armor King | 8–4 | 66.67% |
| RuiZ vs Asuka | 2–6 | 25.00% |
| RuiZ vs Dragunov | 5–3 | 62.50% |
| RuiZ vs Bryan | 2–4 | 33.33% |
| RuiZ vs Lili | 3–2 | 60.00% |
| RuiZ vs Lars | 2–3 | 40.00% |
| RuiZ vs Victor | 3–2 | 60.00% |
| RuiZ vs Law | 2–2 | 50.00% |
| RuiZ vs Hwoarang | 2–2 | 50.00% |
| RuiZ vs Nina | 2–2 | 50.00% |
| RuiZ vs Jun | 2–1 | 66.67% |
| RuiZ vs Azucena | 1–2 | 33.33% |
| RuiZ vs Heihachi | 2–1 | 66.67% |
| RuiZ vs Feng | 2–0 | 100.00% |
| RuiZ vs Claudio | 0–2 | 0.00% |
| RuiZ vs Kuma | 2–0 | 100.00% |
| RuiZ vs Eddy | 2–0 | 100.00% |
| RuiZ vs Fahkumram | 2–0 | 100.00% |
| RuiZ vs Devil Jin | 1–0 | 100.00% |
| RuiZ vs Lidia | 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.