| Ruuko vs Jin | 12–4 | 75.00% |
| Ruuko vs Steve | 12–3 | 80.00% |
| Ruuko vs Heihachi | 6–6 | 50.00% |
| Ruuko vs Asuka | 8–3 | 72.73% |
| Ruuko vs Bryan | 6–3 | 66.67% |
| Ruuko vs Lili | 5–4 | 55.56% |
| Ruuko vs Hwoarang | 5–0 | 100.00% |
| Ruuko vs Dragunov | 2–3 | 40.00% |
| Ruuko vs King | 1–3 | 25.00% |
| Ruuko vs Kazuya | 1–3 | 25.00% |
| Ruuko vs Shaheen | 1–2 | 33.33% |
| Ruuko vs Nina | 2–1 | 66.67% |
| Ruuko vs Paul | 2–0 | 100.00% |
| Ruuko vs Law | 2–0 | 100.00% |
| Ruuko vs Feng | 0–2 | 0.00% |
| Ruuko vs Leo | 2–0 | 100.00% |
| Ruuko vs Lars | 1–1 | 50.00% |
| Ruuko vs Lee | 2–0 | 100.00% |
| Ruuko vs Kuma | 0–2 | 0.00% |
| Ruuko vs Zafina | 2–0 | 100.00% |
| Ruuko vs Eddy | 0–2 | 0.00% |
| Ruuko vs Clive | 0–2 | 0.00% |
| Ruuko vs Jun | 1–0 | 100.00% |
| Ruuko 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.