| Ryuuko21 vs Jin | 9–7 | 56.25% |
| Ryuuko21 vs Hwoarang | 7–7 | 50.00% |
| Ryuuko21 vs Steve | 6–8 | 42.86% |
| Ryuuko21 vs Lili | 6–7 | 46.15% |
| Ryuuko21 vs Paul | 3–9 | 25.00% |
| Ryuuko21 vs Law | 7–4 | 63.64% |
| Ryuuko21 vs Dragunov | 7–4 | 63.64% |
| Ryuuko21 vs Reina | 6–5 | 54.55% |
| Ryuuko21 vs Kuma | 3–6 | 33.33% |
| Ryuuko21 vs Jun | 4–4 | 50.00% |
| Ryuuko21 vs Victor | 3–5 | 37.50% |
| Ryuuko21 vs King | 4–3 | 57.14% |
| Ryuuko21 vs Bryan | 3–4 | 42.86% |
| Ryuuko21 vs Yoshimitsu | 4–1 | 80.00% |
| Ryuuko21 vs Kazuya | 2–3 | 40.00% |
| Ryuuko21 vs Asuka | 3–2 | 60.00% |
| Ryuuko21 vs Lars | 3–2 | 60.00% |
| Ryuuko21 vs Azucena | 1–4 | 20.00% |
| Ryuuko21 vs Shaheen | 3–1 | 75.00% |
| Ryuuko21 vs Xiaoyu | 1–2 | 33.33% |
| Ryuuko21 vs Claudio | 2–1 | 66.67% |
| Ryuuko21 vs Lidia | 1–2 | 33.33% |
| Ryuuko21 vs Devil Jin | 0–2 | 0.00% |
| Ryuuko21 vs Leo | 1–1 | 50.00% |
| Ryuuko21 vs Alisa | 0–2 | 0.00% |
| Ryuuko21 vs Lee | 2–0 | 100.00% |
| Ryuuko21 vs Panda | 2–0 | 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.