| Ruina vs Reina | 25–13 | 65.79% |
| Ruina vs Dragunov | 19–15 | 55.88% |
| Ruina vs Jin | 16–14 | 53.33% |
| Ruina vs Kazuya | 20–9 | 68.97% |
| Ruina vs King | 19–9 | 67.86% |
| Ruina vs Hwoarang | 18–10 | 64.29% |
| Ruina vs Paul | 11–12 | 47.83% |
| Ruina vs Bryan | 10–12 | 45.45% |
| Ruina vs Steve | 14–6 | 70.00% |
| Ruina vs Victor | 7–13 | 35.00% |
| Ruina vs Yoshimitsu | 9–10 | 47.37% |
| Ruina vs Leo | 11–8 | 57.89% |
| Ruina vs Asuka | 8–9 | 47.06% |
| Ruina vs Feng | 6–7 | 46.15% |
| Ruina vs Lili | 6–7 | 46.15% |
| Ruina vs Devil Jin | 4–7 | 36.36% |
| Ruina vs Kuma | 8–3 | 72.73% |
| Ruina vs Azucena | 7–4 | 63.64% |
| Ruina vs Clive | 8–3 | 72.73% |
| Ruina vs Law | 8–2 | 80.00% |
| Ruina vs Alisa | 8–2 | 80.00% |
| Ruina vs Lidia | 6–4 | 60.00% |
| Ruina vs Claudio | 5–4 | 55.56% |
| Ruina vs Lee | 5–4 | 55.56% |
| Ruina vs Heihachi | 4–5 | 44.44% |
| Ruina vs Jun | 7–1 | 87.50% |
| Ruina vs Leroy | 4–3 | 57.14% |
| Ruina vs Jack-8 | 0–6 | 0.00% |
| Ruina vs Shaheen | 3–3 | 50.00% |
| Ruina vs Eddy | 2–3 | 40.00% |
| Ruina vs Armor King | 3–2 | 60.00% |
| Ruina vs Nina | 2–2 | 50.00% |
| Ruina vs Zafina | 2–2 | 50.00% |
| Ruina vs Lars | 0–3 | 0.00% |
| Ruina vs Raven | 2–1 | 66.67% |
| Ruina vs Miary Zo | 2–1 | 66.67% |
| Ruina vs Xiaoyu | 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.