| Rion vs King | 26–39 | 40.00% |
| Rion vs Reina | 25–24 | 51.02% |
| Rion vs Hwoarang | 17–31 | 35.42% |
| Rion vs Law | 15–22 | 40.54% |
| Rion vs Jin | 17–20 | 45.95% |
| Rion vs Victor | 13–22 | 37.14% |
| Rion vs Kazuya | 20–14 | 58.82% |
| Rion vs Asuka | 9–21 | 30.00% |
| Rion vs Lili | 13–14 | 48.15% |
| Rion vs Dragunov | 11–16 | 40.74% |
| Rion vs Paul | 11–15 | 42.31% |
| Rion vs Steve | 14–12 | 53.85% |
| Rion vs Yoshimitsu | 11–14 | 44.00% |
| Rion vs Lee | 13–11 | 54.17% |
| Rion vs Devil Jin | 6–14 | 30.00% |
| Rion vs Lidia | 9–10 | 47.37% |
| Rion vs Heihachi | 9–9 | 50.00% |
| Rion vs Xiaoyu | 4–13 | 23.53% |
| Rion vs Lars | 9–7 | 56.25% |
| Rion vs Claudio | 7–9 | 43.75% |
| Rion vs Azucena | 8–7 | 53.33% |
| Rion vs Jun | 3–11 | 21.43% |
| Rion vs Alisa | 4–8 | 33.33% |
| Rion vs Feng | 4–5 | 44.44% |
| Rion vs Nina | 3–5 | 37.50% |
| Rion vs Eddy | 3–5 | 37.50% |
| Rion vs Clive | 1–7 | 12.50% |
| Rion vs Bryan | 5–2 | 71.43% |
| Rion vs Shaheen | 2–5 | 28.57% |
| Rion vs Leo | 3–3 | 50.00% |
| Rion vs Kuma | 2–3 | 40.00% |
| Rion vs Raven | 0–4 | 0.00% |
| Rion vs Leroy | 2–1 | 66.67% |
| Rion vs Fahkumram | 1–2 | 33.33% |
| Rion vs Miary Zo | 2–1 | 66.67% |
| Rion vs Zafina | 0–2 | 0.00% |
| Rion vs Armor King | 2–0 | 100.00% |
| Rion vs Jack-8 | 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.