| Ralf vs Law | 4–9 | 30.77% |
| Ralf vs Reina | 6–5 | 54.55% |
| Ralf vs Hwoarang | 3–7 | 30.00% |
| Ralf vs Lili | 2–8 | 20.00% |
| Ralf vs Lars | 2–7 | 22.22% |
| Ralf vs Kazuya | 3–4 | 42.86% |
| Ralf vs Steve | 1–6 | 14.29% |
| Ralf vs Jun | 1–6 | 14.29% |
| Ralf vs Victor | 0–7 | 0.00% |
| Ralf vs Bryan | 0–6 | 0.00% |
| Ralf vs King | 1–4 | 20.00% |
| Ralf vs Jin | 0–5 | 0.00% |
| Ralf vs Yoshimitsu | 1–3 | 25.00% |
| Ralf vs Asuka | 0–4 | 0.00% |
| Ralf vs Dragunov | 1–3 | 25.00% |
| Ralf vs Paul | 2–1 | 66.67% |
| Ralf vs Feng | 0–3 | 0.00% |
| Ralf vs Alisa | 1–2 | 33.33% |
| Ralf vs Nina | 1–2 | 33.33% |
| Ralf vs Azucena | 1–2 | 33.33% |
| Ralf vs Eddy | 1–2 | 33.33% |
| Ralf vs Devil Jin | 0–2 | 0.00% |
| Ralf vs Claudio | 1–1 | 50.00% |
| Ralf vs Zafina | 0–2 | 0.00% |
| Ralf vs Xiaoyu | 1–0 | 100.00% |
| Ralf vs Leo | 0–1 | 0.00% |
| Ralf vs Raven | 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.