| RE9-RE4 vs King | 49–53 | 48.04% |
| RE9-RE4 vs Kazuya | 28–59 | 32.18% |
| RE9-RE4 vs Jin | 23–45 | 33.82% |
| RE9-RE4 vs Steve | 22–27 | 44.90% |
| RE9-RE4 vs Bryan | 19–26 | 42.22% |
| RE9-RE4 vs Heihachi | 14–30 | 31.82% |
| RE9-RE4 vs Law | 15–26 | 36.59% |
| RE9-RE4 vs Reina | 19–17 | 52.78% |
| RE9-RE4 vs Dragunov | 11–24 | 31.43% |
| RE9-RE4 vs Hwoarang | 10–22 | 31.25% |
| RE9-RE4 vs Yoshimitsu | 11–20 | 35.48% |
| RE9-RE4 vs Lee | 19–12 | 61.29% |
| RE9-RE4 vs Paul | 12–17 | 41.38% |
| RE9-RE4 vs Victor | 9–17 | 34.62% |
| RE9-RE4 vs Clive | 11–11 | 50.00% |
| RE9-RE4 vs Claudio | 2–18 | 10.00% |
| RE9-RE4 vs Anna | 14–5 | 73.68% |
| RE9-RE4 vs Lars | 9–9 | 50.00% |
| RE9-RE4 vs Nina | 7–11 | 38.89% |
| RE9-RE4 vs Asuka | 7–10 | 41.18% |
| RE9-RE4 vs Devil Jin | 8–9 | 47.06% |
| RE9-RE4 vs Lili | 6–10 | 37.50% |
| RE9-RE4 vs Eddy | 6–10 | 37.50% |
| RE9-RE4 vs Lidia | 7–9 | 43.75% |
| RE9-RE4 vs Feng | 6–9 | 40.00% |
| RE9-RE4 vs Jun | 7–8 | 46.67% |
| RE9-RE4 vs Azucena | 9–5 | 64.29% |
| RE9-RE4 vs Xiaoyu | 4–8 | 33.33% |
| RE9-RE4 vs Alisa | 4–8 | 33.33% |
| RE9-RE4 vs Leroy | 6–6 | 50.00% |
| RE9-RE4 vs Leo | 6–2 | 75.00% |
| RE9-RE4 vs Fahkumram | 5–2 | 71.43% |
| RE9-RE4 vs Jack-8 | 2–4 | 33.33% |
| RE9-RE4 vs Raven | 6–0 | 100.00% |
| RE9-RE4 vs Zafina | 2–3 | 40.00% |
| RE9-RE4 vs Armor King | 0–4 | 0.00% |
| RE9-RE4 vs Shaheen | 1–1 | 50.00% |
| RE9-RE4 vs Kuma | 2–0 | 100.00% |
| RE9-RE4 vs Panda | 0–2 | 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.