| Rumi vs Dragunov | 14–8 | 63.64% |
| Rumi vs Hwoarang | 11–9 | 55.00% |
| Rumi vs Bryan | 9–9 | 50.00% |
| Rumi vs Steve | 13–4 | 76.47% |
| Rumi vs Lars | 12–4 | 75.00% |
| Rumi vs Law | 12–3 | 80.00% |
| Rumi vs Reina | 9–5 | 64.29% |
| Rumi vs King | 8–4 | 66.67% |
| Rumi vs Devil Jin | 9–3 | 75.00% |
| Rumi vs Leo | 8–4 | 66.67% |
| Rumi vs Kazuya | 7–4 | 63.64% |
| Rumi vs Jin | 6–4 | 60.00% |
| Rumi vs Asuka | 7–2 | 77.78% |
| Rumi vs Yoshimitsu | 5–3 | 62.50% |
| Rumi vs Xiaoyu | 5–3 | 62.50% |
| Rumi vs Jack-8 | 6–2 | 75.00% |
| Rumi vs Lili | 4–3 | 57.14% |
| Rumi vs Nina | 4–3 | 57.14% |
| Rumi vs Lee | 5–2 | 71.43% |
| Rumi vs Victor | 4–3 | 57.14% |
| Rumi vs Azucena | 5–1 | 83.33% |
| Rumi vs Shaheen | 3–2 | 60.00% |
| Rumi vs Zafina | 4–1 | 80.00% |
| Rumi vs Leroy | 5–0 | 100.00% |
| Rumi vs Raven | 3–2 | 60.00% |
| Rumi vs Eddy | 3–2 | 60.00% |
| Rumi vs Paul | 2–2 | 50.00% |
| Rumi vs Feng | 4–0 | 100.00% |
| Rumi vs Kuma | 2–2 | 50.00% |
| Rumi vs Jun | 3–0 | 100.00% |
| Rumi vs Alisa | 2–0 | 100.00% |
| Rumi vs Claudio | 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.