| riv4 vs Law | 7–9 | 43.75% |
| riv4 vs Eddy | 4–11 | 26.67% |
| riv4 vs Jin | 3–10 | 23.08% |
| riv4 vs Yoshimitsu | 5–4 | 55.56% |
| riv4 vs Hwoarang | 4–5 | 44.44% |
| riv4 vs Steve | 5–4 | 55.56% |
| riv4 vs Reina | 8–0 | 100.00% |
| riv4 vs Victor | 7–1 | 87.50% |
| riv4 vs Jack-8 | 2–5 | 28.57% |
| riv4 vs Nina | 5–2 | 71.43% |
| riv4 vs Kazuya | 2–3 | 40.00% |
| riv4 vs Asuka | 2–3 | 40.00% |
| riv4 vs Dragunov | 3–2 | 60.00% |
| riv4 vs King | 0–4 | 0.00% |
| riv4 vs Xiaoyu | 2–2 | 50.00% |
| riv4 vs Devil Jin | 0–4 | 0.00% |
| riv4 vs Feng | 3–1 | 75.00% |
| riv4 vs Lee | 2–2 | 50.00% |
| riv4 vs Raven | 2–2 | 50.00% |
| riv4 vs Bryan | 1–2 | 33.33% |
| riv4 vs Leo | 1–2 | 33.33% |
| riv4 vs Lars | 3–0 | 100.00% |
| riv4 vs Alisa | 1–2 | 33.33% |
| riv4 vs Kuma | 1–2 | 33.33% |
| riv4 vs Leroy | 3–0 | 100.00% |
| riv4 vs Paul | 0–2 | 0.00% |
| riv4 vs Jun | 0–2 | 0.00% |
| riv4 vs Lili | 1–0 | 100.00% |
| riv4 vs Zafina | 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.