| Rumi vs King | 15–14 | 51.72% |
| Rumi vs Law | 13–12 | 52.00% |
| Rumi vs Kazuya | 13–9 | 59.09% |
| Rumi vs Victor | 5–11 | 31.25% |
| Rumi vs Jin | 8–7 | 53.33% |
| Rumi vs Hwoarang | 6–7 | 46.15% |
| Rumi vs Bryan | 8–5 | 61.54% |
| Rumi vs Heihachi | 4–8 | 33.33% |
| Rumi vs Yoshimitsu | 5–4 | 55.56% |
| Rumi vs Alisa | 8–0 | 100.00% |
| Rumi vs Reina | 5–1 | 83.33% |
| Rumi vs Paul | 4–2 | 66.67% |
| Rumi vs Steve | 3–2 | 60.00% |
| Rumi vs Devil Jin | 3–2 | 60.00% |
| Rumi vs Jack-8 | 2–2 | 50.00% |
| Rumi vs Leo | 2–2 | 50.00% |
| Rumi vs Lars | 1–3 | 25.00% |
| Rumi vs Jun | 0–4 | 0.00% |
| Rumi vs Lili | 2–1 | 66.67% |
| Rumi vs Lee | 1–2 | 33.33% |
| Rumi vs Asuka | 0–2 | 0.00% |
| Rumi vs Dragunov | 2–0 | 100.00% |
| Rumi vs Xiaoyu | 2–0 | 100.00% |
| Rumi vs Nina | 2–0 | 100.00% |
| Rumi vs Feng | 1–0 | 100.00% |
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.