| Ruka vs King | 8–3 | 72.73% |
| Ruka vs Jin | 5–4 | 55.56% |
| Ruka vs Reina | 5–4 | 55.56% |
| Ruka vs Alisa | 4–4 | 50.00% |
| Ruka vs Victor | 4–4 | 50.00% |
| Ruka vs Hwoarang | 4–3 | 57.14% |
| Ruka vs Bryan | 1–6 | 14.29% |
| Ruka vs Asuka | 4–3 | 57.14% |
| Ruka vs Dragunov | 6–1 | 85.71% |
| Ruka vs Azucena | 1–4 | 20.00% |
| Ruka vs Heihachi | 1–4 | 20.00% |
| Ruka vs Yoshimitsu | 1–3 | 25.00% |
| Ruka vs Lili | 0–4 | 0.00% |
| Ruka vs Paul | 1–2 | 33.33% |
| Ruka vs Kazuya | 0–3 | 0.00% |
| Ruka vs Devil Jin | 1–2 | 33.33% |
| Ruka vs Lidia | 2–1 | 66.67% |
| Ruka vs Claudio | 3–0 | 100.00% |
| Ruka vs Lee | 2–1 | 66.67% |
| Ruka vs Xiaoyu | 2–0 | 100.00% |
| Ruka vs Feng | 2–0 | 100.00% |
| Ruka vs Lars | 0–2 | 0.00% |
| Ruka vs Eddy | 2–0 | 100.00% |
| Ruka vs Jack-8 | 0–2 | 0.00% |
| Ruka vs Nina | 0–2 | 0.00% |
| Ruka vs Jun | 2–0 | 100.00% |
| Ruka vs Law | 1–0 | 100.00% |
| Ruka vs Steve | 1–0 | 100.00% |
| Ruka vs Zafina | 1–0 | 100.00% |
| Ruka vs Raven | 0–1 | 0.00% |
| Ruka vs Leroy | 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.