| Ruka vs Reina | 14–11 | 56.00% |
| Ruka vs Lidia | 15–10 | 60.00% |
| Ruka vs Bryan | 7–14 | 33.33% |
| Ruka vs Kazuya | 11–8 | 57.89% |
| Ruka vs Victor | 13–5 | 72.22% |
| Ruka vs King | 9–8 | 52.94% |
| Ruka vs Lili | 7–9 | 43.75% |
| Ruka vs Eddy | 8–6 | 57.14% |
| Ruka vs Law | 4–9 | 30.77% |
| Ruka vs Paul | 10–2 | 83.33% |
| Ruka vs Yoshimitsu | 8–4 | 66.67% |
| Ruka vs Hwoarang | 6–5 | 54.55% |
| Ruka vs Steve | 5–6 | 45.45% |
| Ruka vs Kuma | 7–4 | 63.64% |
| Ruka vs Asuka | 9–1 | 90.00% |
| Ruka vs Azucena | 6–4 | 60.00% |
| Ruka vs Jin | 4–4 | 50.00% |
| Ruka vs Lars | 5–3 | 62.50% |
| Ruka vs Nina | 6–2 | 75.00% |
| Ruka vs Leroy | 6–2 | 75.00% |
| Ruka vs Xiaoyu | 3–4 | 42.86% |
| Ruka vs Jun | 4–3 | 57.14% |
| Ruka vs Lee | 6–0 | 100.00% |
| Ruka vs Alisa | 2–3 | 40.00% |
| Ruka vs Jack-8 | 3–1 | 75.00% |
| Ruka vs Devil Jin | 3–1 | 75.00% |
| Ruka vs Claudio | 2–2 | 50.00% |
| Ruka vs Heihachi | 0–4 | 0.00% |
| Ruka vs Dragunov | 1–2 | 33.33% |
| Ruka vs Fahkumram | 2–1 | 66.67% |
| Ruka vs Feng | 0–2 | 0.00% |
| Ruka vs Leo | 0–2 | 0.00% |
| Ruka vs Shaheen | 2–0 | 100.00% |
| Ruka vs Zafina | 0–2 | 0.00% |
| Ruka vs Miary Zo | 0–2 | 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.