| Rioshima vs Bryan | 35–13 | 72.92% |
| Rioshima vs Kazuya | 30–16 | 65.22% |
| Rioshima vs Reina | 27–18 | 60.00% |
| Rioshima vs King | 28–10 | 73.68% |
| Rioshima vs Law | 22–11 | 66.67% |
| Rioshima vs Dragunov | 19–12 | 61.29% |
| Rioshima vs Azucena | 22–8 | 73.33% |
| Rioshima vs Steve | 20–8 | 71.43% |
| Rioshima vs Paul | 17–10 | 62.96% |
| Rioshima vs Lili | 21–6 | 77.78% |
| Rioshima vs Xiaoyu | 15–11 | 57.69% |
| Rioshima vs Jin | 20–6 | 76.92% |
| Rioshima vs Eddy | 22–4 | 84.62% |
| Rioshima vs Lars | 17–7 | 70.83% |
| Rioshima vs Jun | 14–9 | 60.87% |
| Rioshima vs Victor | 13–10 | 56.52% |
| Rioshima vs Leo | 13–9 | 59.09% |
| Rioshima vs Yoshimitsu | 11–10 | 52.38% |
| Rioshima vs Armor King | 8–12 | 40.00% |
| Rioshima vs Lidia | 11–8 | 57.89% |
| Rioshima vs Hwoarang | 10–5 | 66.67% |
| Rioshima vs Devil Jin | 6–8 | 42.86% |
| Rioshima vs Feng | 13–1 | 92.86% |
| Rioshima vs Heihachi | 8–6 | 57.14% |
| Rioshima vs Claudio | 6–4 | 60.00% |
| Rioshima vs Kuma | 6–3 | 66.67% |
| Rioshima vs Zafina | 7–2 | 77.78% |
| Rioshima vs Raven | 7–2 | 77.78% |
| Rioshima vs Asuka | 6–2 | 75.00% |
| Rioshima vs Alisa | 7–1 | 87.50% |
| Rioshima vs Nina | 4–3 | 57.14% |
| Rioshima vs Lee | 3–4 | 42.86% |
| Rioshima vs Clive | 6–1 | 85.71% |
| Rioshima vs Anna | 3–3 | 50.00% |
| Rioshima vs Jack-8 | 5–0 | 100.00% |
| Rioshima vs Leroy | 4–1 | 80.00% |
| Rioshima vs Fahkumram | 3–2 | 60.00% |
| Rioshima vs Panda | 3–0 | 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.