| Ralph vs Jin | 63–56 | 52.94% |
| Ralph vs King | 56–61 | 47.86% |
| Ralph vs Steve | 51–64 | 44.35% |
| Ralph vs Bryan | 56–55 | 50.45% |
| Ralph vs Hwoarang | 48–60 | 44.44% |
| Ralph vs Paul | 41–64 | 39.05% |
| Ralph vs Kazuya | 54–45 | 54.55% |
| Ralph vs Dragunov | 32–45 | 41.56% |
| Ralph vs Lee | 27–39 | 40.91% |
| Ralph vs Lars | 41–18 | 69.49% |
| Ralph vs Eddy | 16–41 | 28.07% |
| Ralph vs Law | 19–36 | 34.55% |
| Ralph vs Victor | 22–30 | 42.31% |
| Ralph vs Reina | 21–28 | 42.86% |
| Ralph vs Jun | 20–25 | 44.44% |
| Ralph vs Yoshimitsu | 20–24 | 45.45% |
| Ralph vs Alisa | 14–26 | 35.00% |
| Ralph vs Lili | 15–21 | 41.67% |
| Ralph vs Asuka | 15–20 | 42.86% |
| Ralph vs Feng | 19–15 | 55.88% |
| Ralph vs Leroy | 12–18 | 40.00% |
| Ralph vs Lidia | 10–16 | 38.46% |
| Ralph vs Xiaoyu | 15–10 | 60.00% |
| Ralph vs Kuma | 10–15 | 40.00% |
| Ralph vs Jack-8 | 13–11 | 54.17% |
| Ralph vs Raven | 9–13 | 40.91% |
| Ralph vs Claudio | 8–13 | 38.10% |
| Ralph vs Devil Jin | 7–11 | 38.89% |
| Ralph vs Leo | 6–11 | 35.29% |
| Ralph vs Azucena | 8–8 | 50.00% |
| Ralph vs Nina | 8–7 | 53.33% |
| Ralph vs Panda | 4–8 | 33.33% |
| Ralph vs Shaheen | 6–5 | 54.55% |
| Ralph vs Zafina | 5–6 | 45.45% |
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.