| RiverStone vs King | 9–8 | 52.94% |
| RiverStone vs Hwoarang | 8–9 | 47.06% |
| RiverStone vs Yoshimitsu | 7–8 | 46.67% |
| RiverStone vs Law | 7–6 | 53.85% |
| RiverStone vs Miary Zo | 4–9 | 30.77% |
| RiverStone vs Lidia | 4–7 | 36.36% |
| RiverStone vs Jin | 4–6 | 40.00% |
| RiverStone vs Kazuya | 4–5 | 44.44% |
| RiverStone vs Reina | 3–6 | 33.33% |
| RiverStone vs Dragunov | 2–6 | 25.00% |
| RiverStone vs Kuma | 2–6 | 25.00% |
| RiverStone vs Heihachi | 2–6 | 25.00% |
| RiverStone vs Lili | 1–6 | 14.29% |
| RiverStone vs Eddy | 4–3 | 57.14% |
| RiverStone vs Armor King | 1–6 | 14.29% |
| RiverStone vs Steve | 5–1 | 83.33% |
| RiverStone vs Paul | 4–1 | 80.00% |
| RiverStone vs Asuka | 3–2 | 60.00% |
| RiverStone vs Lars | 2–3 | 40.00% |
| RiverStone vs Nina | 4–1 | 80.00% |
| RiverStone vs Anna | 4–1 | 80.00% |
| RiverStone vs Claudio | 0–4 | 0.00% |
| RiverStone vs Jun | 1–3 | 25.00% |
| RiverStone vs Azucena | 0–4 | 0.00% |
| RiverStone vs Raven | 1–2 | 33.33% |
| RiverStone vs Clive | 1–2 | 33.33% |
| RiverStone vs Xiaoyu | 1–1 | 50.00% |
| RiverStone vs Jack-8 | 0–2 | 0.00% |
| RiverStone vs Leo | 0–2 | 0.00% |
| RiverStone vs Lee | 0–2 | 0.00% |
| RiverStone vs Victor | 0–2 | 0.00% |
| RiverStone vs Alisa | 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.