| Rio Futaba vs King | 24–15 | 61.54% |
| Rio Futaba vs Jin | 20–18 | 52.63% |
| Rio Futaba vs Hwoarang | 20–13 | 60.61% |
| Rio Futaba vs Reina | 21–10 | 67.74% |
| Rio Futaba vs Steve | 22–8 | 73.33% |
| Rio Futaba vs Eddy | 19–9 | 67.86% |
| Rio Futaba vs Kazuya | 14–13 | 51.85% |
| Rio Futaba vs Dragunov | 12–10 | 54.55% |
| Rio Futaba vs Leo | 12–10 | 54.55% |
| Rio Futaba vs Bryan | 10–11 | 47.62% |
| Rio Futaba vs Lee | 11–10 | 52.38% |
| Rio Futaba vs Paul | 8–11 | 42.11% |
| Rio Futaba vs Asuka | 10–9 | 52.63% |
| Rio Futaba vs Lili | 10–8 | 55.56% |
| Rio Futaba vs Yoshimitsu | 8–9 | 47.06% |
| Rio Futaba vs Victor | 9–7 | 56.25% |
| Rio Futaba vs Law | 11–4 | 73.33% |
| Rio Futaba vs Leroy | 8–7 | 53.33% |
| Rio Futaba vs Azucena | 9–6 | 60.00% |
| Rio Futaba vs Fahkumram | 4–10 | 28.57% |
| Rio Futaba vs Feng | 6–6 | 50.00% |
| Rio Futaba vs Alisa | 2–9 | 18.18% |
| Rio Futaba vs Xiaoyu | 5–5 | 50.00% |
| Rio Futaba vs Kuma | 7–3 | 70.00% |
| Rio Futaba vs Jack-8 | 6–3 | 66.67% |
| Rio Futaba vs Jun | 4–5 | 44.44% |
| Rio Futaba vs Armor King | 5–4 | 55.56% |
| Rio Futaba vs Nina | 5–3 | 62.50% |
| Rio Futaba vs Shaheen | 3–4 | 42.86% |
| Rio Futaba vs Zafina | 5–2 | 71.43% |
| Rio Futaba vs Clive | 4–3 | 57.14% |
| Rio Futaba vs Devil Jin | 2–3 | 40.00% |
| Rio Futaba vs Claudio | 4–1 | 80.00% |
| Rio Futaba vs Raven | 4–1 | 80.00% |
| Rio Futaba vs Lidia | 1–3 | 25.00% |
| Rio Futaba vs Miary Zo | 3–1 | 75.00% |
| Rio Futaba vs Heihachi | 3–0 | 100.00% |
| Rio Futaba vs Anna | 3–0 | 100.00% |
| Rio Futaba vs Lars | 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.