| Ruano vs King | 50–60 | 45.45% |
| Ruano vs Law | 48–37 | 56.47% |
| Ruano vs Jin | 39–44 | 46.99% |
| Ruano vs Kazuya | 35–38 | 47.95% |
| Ruano vs Steve | 33–28 | 54.10% |
| Ruano vs Hwoarang | 38–21 | 64.41% |
| Ruano vs Reina | 34–19 | 64.15% |
| Ruano vs Bryan | 23–28 | 45.10% |
| Ruano vs Heihachi | 17–21 | 44.74% |
| Ruano vs Lili | 23–14 | 62.16% |
| Ruano vs Yoshimitsu | 19–14 | 57.58% |
| Ruano vs Lars | 17–16 | 51.52% |
| Ruano vs Asuka | 18–14 | 56.25% |
| Ruano vs Dragunov | 14–18 | 43.75% |
| Ruano vs Armor King | 15–17 | 46.88% |
| Ruano vs Jun | 14–15 | 48.28% |
| Ruano vs Eddy | 17–12 | 58.62% |
| Ruano vs Clive | 10–18 | 35.71% |
| Ruano vs Paul | 13–14 | 48.15% |
| Ruano vs Lidia | 12–14 | 46.15% |
| Ruano vs Azucena | 12–13 | 48.00% |
| Ruano vs Leroy | 11–12 | 47.83% |
| Ruano vs Devil Jin | 5–16 | 23.81% |
| Ruano vs Feng | 9–12 | 42.86% |
| Ruano vs Jack-8 | 4–16 | 20.00% |
| Ruano vs Victor | 11–9 | 55.00% |
| Ruano vs Alisa | 14–5 | 73.68% |
| Ruano vs Lee | 12–6 | 66.67% |
| Ruano vs Xiaoyu | 15–2 | 88.24% |
| Ruano vs Nina | 11–5 | 68.75% |
| Ruano vs Leo | 8–5 | 61.54% |
| Ruano vs Panda | 2–8 | 20.00% |
| Ruano vs Claudio | 4–4 | 50.00% |
| Ruano vs Fahkumram | 0–8 | 0.00% |
| Ruano vs Raven | 2–4 | 33.33% |
| Ruano vs Anna | 2–4 | 33.33% |
| Ruano vs Zafina | 3–1 | 75.00% |
| Ruano vs Shaheen | 0–2 | 0.00% |
| Ruano vs Kuma | 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.