| Ruark vs Bryan | 20–15 | 57.14% |
| Ruark vs Jin | 26–6 | 81.25% |
| Ruark vs Kazuya | 21–4 | 84.00% |
| Ruark vs Reina | 19–6 | 76.00% |
| Ruark vs Feng | 15–5–1 | 75.00% |
| Ruark vs Asuka | 14–5 | 73.68% |
| Ruark vs Jun | 10–8 | 55.56% |
| Ruark vs Jack-8 | 6–11 | 35.29% |
| Ruark vs Nina | 11–5 | 68.75% |
| Ruark vs Paul | 10–5 | 66.67% |
| Ruark vs King | 14–1 | 93.33% |
| Ruark vs Hwoarang | 10–5 | 66.67% |
| Ruark vs Steve | 12–3 | 80.00% |
| Ruark vs Victor | 11–4 | 73.33% |
| Ruark vs Dragunov | 10–4 | 71.43% |
| Ruark vs Lee | 10–4 | 71.43% |
| Ruark vs Azucena | 10–4 | 71.43% |
| Ruark vs Leo | 11–2 | 84.62% |
| Ruark vs Lars | 12–0 | 100.00% |
| Ruark vs Zafina | 8–3 | 72.73% |
| Ruark vs Law | 4–4 | 50.00% |
| Ruark vs Lili | 5–3 | 62.50% |
| Ruark vs Leroy | 8–0 | 100.00% |
| Ruark vs Heihachi | 5–3 | 62.50% |
| Ruark vs Yoshimitsu | 4–3 | 57.14% |
| Ruark vs Devil Jin | 4–3 | 57.14% |
| Ruark vs Anna | 6–1 | 85.71% |
| Ruark vs Claudio | 4–2 | 66.67% |
| Ruark vs Lidia | 4–1 | 80.00% |
| Ruark vs Shaheen | 2–2 | 50.00% |
| Ruark vs Armor King | 2–2 | 50.00% |
| Ruark vs Clive | 2–1 | 66.67% |
| Ruark vs Xiaoyu | 2–0 | 100.00% |
| Ruark vs Kuma | 2–0 | 100.00% |
| Ruark vs Eddy | 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.