| Rsioi vs Law | 13–15 | 46.43% |
| Rsioi vs Jin | 4–7 | 36.36% |
| Rsioi vs King | 0–10 | 0.00% |
| Rsioi vs Hwoarang | 2–6 | 25.00% |
| Rsioi vs Heihachi | 1–7 | 12.50% |
| Rsioi vs Steve | 1–5 | 16.67% |
| Rsioi vs Lee | 4–2 | 66.67% |
| Rsioi vs Azucena | 0–5 | 0.00% |
| Rsioi vs Yoshimitsu | 2–2 | 50.00% |
| Rsioi vs Kazuya | 0–4 | 0.00% |
| Rsioi vs Reina | 0–4 | 0.00% |
| Rsioi vs Devil Jin | 2–1 | 66.67% |
| Rsioi vs Feng | 0–3 | 0.00% |
| Rsioi vs Dragunov | 0–3 | 0.00% |
| Rsioi vs Shaheen | 1–2 | 33.33% |
| Rsioi vs Jun | 2–1 | 66.67% |
| Rsioi vs Paul | 0–2 | 0.00% |
| Rsioi vs Alisa | 0–2 | 0.00% |
| Rsioi vs Eddy | 0–2 | 0.00% |
| Rsioi vs Lidia | 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.