| Ralf vs King | 19–18–1 | 51.35% |
| Ralf vs Law | 13–18 | 41.94% |
| Ralf vs Bryan | 9–16 | 36.00% |
| Ralf vs Hwoarang | 7–10 | 41.18% |
| Ralf vs Asuka | 8–5 | 61.54% |
| Ralf vs Steve | 10–2 | 83.33% |
| Ralf vs Dragunov | 5–7 | 41.67% |
| Ralf vs Reina | 8–4 | 66.67% |
| Ralf vs Kazuya | 6–5 | 54.55% |
| Ralf vs Devil Jin | 5–6 | 45.45% |
| Ralf vs Lili | 6–5 | 54.55% |
| Ralf vs Jun | 7–4 | 63.64% |
| Ralf vs Yoshimitsu | 7–3 | 70.00% |
| Ralf vs Jin | 3–5 | 37.50% |
| Ralf vs Lars | 5–3 | 62.50% |
| Ralf vs Kuma | 3–5 | 37.50% |
| Ralf vs Azucena | 4–4 | 50.00% |
| Ralf vs Lee | 1–6 | 14.29% |
| Ralf vs Armor King | 5–2 | 71.43% |
| Ralf vs Miary Zo | 4–3 | 57.14% |
| Ralf vs Feng | 2–4 | 33.33% |
| Ralf vs Paul | 3–2 | 60.00% |
| Ralf vs Nina | 5–0 | 100.00% |
| Ralf vs Clive | 2–3 | 40.00% |
| Ralf vs Anna | 2–2 | 50.00% |
| Ralf vs Shaheen | 1–2 | 33.33% |
| Ralf vs Zafina | 2–1 | 66.67% |
| Ralf vs Victor | 0–3 | 0.00% |
| Ralf vs Alisa | 2–0 | 100.00% |
| Ralf vs Panda | 0–2 | 0.00% |
| Ralf vs Heihachi | 0–1 | 0.00% |
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.