| Ruuu vs King | 49–58–1 | 45.79% |
| Ruuu vs Kazuya | 43–48 | 47.25% |
| Ruuu vs Heihachi | 29–43 | 40.28% |
| Ruuu vs Reina | 36–29 | 55.38% |
| Ruuu vs Fahkumram | 28–35 | 44.44% |
| Ruuu vs Hwoarang | 32–27 | 54.24% |
| Ruuu vs Bryan | 20–32 | 38.46% |
| Ruuu vs Dragunov | 27–24 | 52.94% |
| Ruuu vs Law | 18–31 | 36.73% |
| Ruuu vs Jin | 19–29 | 39.58% |
| Ruuu vs Steve | 23–24 | 48.94% |
| Ruuu vs Lars | 18–27 | 40.00% |
| Ruuu vs Lili | 27–16 | 62.79% |
| Ruuu vs Paul | 18–22 | 45.00% |
| Ruuu vs Yoshimitsu | 17–23 | 42.50% |
| Ruuu vs Leo | 22–17 | 56.41% |
| Ruuu vs Lidia | 17–17 | 50.00% |
| Ruuu vs Devil Jin | 12–20 | 37.50% |
| Ruuu vs Asuka | 21–9 | 70.00% |
| Ruuu vs Jun | 13–14 | 48.15% |
| Ruuu vs Azucena | 16–9 | 64.00% |
| Ruuu vs Feng | 13–10 | 56.52% |
| Ruuu vs Eddy | 6–15 | 28.57% |
| Ruuu vs Lee | 4–16 | 20.00% |
| Ruuu vs Clive | 9–10 | 47.37% |
| Ruuu vs Anna | 14–5 | 73.68% |
| Ruuu vs Alisa | 7–11 | 38.89% |
| Ruuu vs Leroy | 8–9 | 47.06% |
| Ruuu vs Nina | 3–13 | 18.75% |
| Ruuu vs Xiaoyu | 4–9 | 30.77% |
| Ruuu vs Claudio | 8–2 | 80.00% |
| Ruuu vs Shaheen | 7–3 | 70.00% |
| Ruuu vs Zafina | 5–5 | 50.00% |
| Ruuu vs Victor | 4–6 | 40.00% |
| Ruuu vs Jack-8 | 5–4 | 55.56% |
| Ruuu vs Raven | 2–6 | 25.00% |
| Ruuu vs Kuma | 2–0 | 100.00% |
| Ruuu vs Panda | 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.