| Rumiin vs Jin | 14–7 | 66.67% |
| Rumiin vs Kazuya | 9–8 | 52.94% |
| Rumiin vs Jun | 11–6 | 64.71% |
| Rumiin vs Reina | 13–4 | 76.47% |
| Rumiin vs Hwoarang | 11–5 | 68.75% |
| Rumiin vs King | 5–7 | 41.67% |
| Rumiin vs Nina | 6–5 | 54.55% |
| Rumiin vs Lili | 6–4 | 60.00% |
| Rumiin vs Lars | 7–3 | 70.00% |
| Rumiin vs Law | 7–2 | 77.78% |
| Rumiin vs Steve | 9–0 | 100.00% |
| Rumiin vs Bryan | 5–3 | 62.50% |
| Rumiin vs Asuka | 3–4 | 42.86% |
| Rumiin vs Azucena | 5–2 | 71.43% |
| Rumiin vs Eddy | 4–3 | 57.14% |
| Rumiin vs Alisa | 2–4 | 33.33% |
| Rumiin vs Paul | 1–4 | 20.00% |
| Rumiin vs Dragunov | 4–1 | 80.00% |
| Rumiin vs Yoshimitsu | 3–1 | 75.00% |
| Rumiin vs Xiaoyu | 3–1 | 75.00% |
| Rumiin vs Feng | 3–0 | 100.00% |
| Rumiin vs Lee | 1–2 | 33.33% |
| Rumiin vs Leroy | 2–1 | 66.67% |
| Rumiin vs Leo | 2–0 | 100.00% |
| Rumiin vs Claudio | 1–1 | 50.00% |
| Rumiin vs Devil Jin | 0–1 | 0.00% |
| Rumiin vs Panda | 1–0 | 100.00% |
| Rumiin vs Zafina | 1–0 | 100.00% |
| Rumiin vs Victor | 1–0 | 100.00% |
| Rumiin 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.