| Rira vs Reina | 33–26 | 55.93% |
| Rira vs Jin | 18–29 | 38.30% |
| Rira vs Dragunov | 26–20 | 56.52% |
| Rira vs Hwoarang | 25–19 | 56.82% |
| Rira vs King | 20–21 | 48.78% |
| Rira vs Lili | 14–21 | 40.00% |
| Rira vs Paul | 14–20 | 41.18% |
| Rira vs Asuka | 21–13 | 61.76% |
| Rira vs Victor | 12–20 | 37.50% |
| Rira vs Azucena | 16–15 | 51.61% |
| Rira vs Kazuya | 9–20 | 31.03% |
| Rira vs Devil Jin | 14–13 | 51.85% |
| Rira vs Steve | 9–17 | 34.62% |
| Rira vs Bryan | 16–8 | 66.67% |
| Rira vs Lars | 9–15 | 37.50% |
| Rira vs Jun | 10–14 | 41.67% |
| Rira vs Eddy | 12–11 | 52.17% |
| Rira vs Law | 4–15 | 21.05% |
| Rira vs Xiaoyu | 7–9 | 43.75% |
| Rira vs Leo | 10–6 | 62.50% |
| Rira vs Leroy | 5–9 | 35.71% |
| Rira vs Feng | 7–6 | 53.85% |
| Rira vs Claudio | 5–7 | 41.67% |
| Rira vs Nina | 7–5 | 58.33% |
| Rira vs Yoshimitsu | 5–6 | 45.45% |
| Rira vs Lee | 4–7 | 36.36% |
| Rira vs Kuma | 6–4 | 60.00% |
| Rira vs Alisa | 3–6 | 33.33% |
| Rira vs Shaheen | 2–6 | 25.00% |
| Rira vs Jack-8 | 3–2 | 60.00% |
| Rira vs Raven | 2–3 | 40.00% |
| Rira vs Panda | 1–3 | 25.00% |
| Rira vs Zafina | 2–2 | 50.00% |
| Rira vs Lidia | 1–1 | 50.00% |
| Rira vs Heihachi | 1–0 | 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.