| Riacca vs Jin | 7–10 | 41.18% |
| Riacca vs Eddy | 2–12 | 14.29% |
| Riacca vs Armor King | 9–4 | 69.23% |
| Riacca vs Jack-8 | 2–10 | 16.67% |
| Riacca vs Dragunov | 3–9 | 25.00% |
| Riacca vs Steve | 4–6 | 40.00% |
| Riacca vs Reina | 1–8 | 11.11% |
| Riacca vs Heihachi | 6–3 | 66.67% |
| Riacca vs Law | 6–2 | 75.00% |
| Riacca vs Kazuya | 0–8 | 0.00% |
| Riacca vs King | 1–6 | 14.29% |
| Riacca vs Lee | 4–3 | 57.14% |
| Riacca vs Victor | 1–6 | 14.29% |
| Riacca vs Devil Jin | 3–3 | 50.00% |
| Riacca vs Jun | 2–3 | 40.00% |
| Riacca vs Bryan | 2–2 | 50.00% |
| Riacca vs Lars | 0–4 | 0.00% |
| Riacca vs Paul | 0–3 | 0.00% |
| Riacca vs Claudio | 1–2 | 33.33% |
| Riacca vs Hwoarang | 0–2 | 0.00% |
| Riacca vs Feng | 2–0 | 100.00% |
| Riacca vs Lili | 0–2 | 0.00% |
| Riacca vs Leo | 0–2 | 0.00% |
| Riacca vs Nina | 0–2 | 0.00% |
| Riacca vs Clive | 1–1 | 50.00% |
| Riacca vs Anna | 0–2 | 0.00% |
| Riacca vs Fahkumram | 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.