| RumaNuma vs King | 25–8 | 75.76% |
| RumaNuma vs Jin | 18–6 | 75.00% |
| RumaNuma vs Steve | 10–14 | 41.67% |
| RumaNuma vs Hwoarang | 11–10 | 52.38% |
| RumaNuma vs Dragunov | 12–9 | 57.14% |
| RumaNuma vs Azucena | 14–7 | 66.67% |
| RumaNuma vs Yoshimitsu | 13–7 | 65.00% |
| RumaNuma vs Lee | 8–10 | 44.44% |
| RumaNuma vs Reina | 13–5 | 72.22% |
| RumaNuma vs Asuka | 8–9 | 47.06% |
| RumaNuma vs Kazuya | 10–5 | 66.67% |
| RumaNuma vs Lili | 6–9 | 40.00% |
| RumaNuma vs Xiaoyu | 8–6 | 57.14% |
| RumaNuma vs Devil Jin | 9–5 | 64.29% |
| RumaNuma vs Lars | 10–3 | 76.92% |
| RumaNuma vs Law | 9–2 | 81.82% |
| RumaNuma vs Nina | 10–0 | 100.00% |
| RumaNuma vs Jun | 8–2 | 80.00% |
| RumaNuma vs Eddy | 6–3 | 66.67% |
| RumaNuma vs Bryan | 6–1 | 85.71% |
| RumaNuma vs Jack-8 | 6–1 | 85.71% |
| RumaNuma vs Paul | 4–2 | 66.67% |
| RumaNuma vs Kuma | 3–2 | 60.00% |
| RumaNuma vs Leroy | 1–4 | 20.00% |
| RumaNuma vs Victor | 1–4 | 20.00% |
| RumaNuma vs Raven | 2–3 | 40.00% |
| RumaNuma vs Feng | 3–1 | 75.00% |
| RumaNuma vs Alisa | 3–1 | 75.00% |
| RumaNuma vs Claudio | 1–2 | 33.33% |
| RumaNuma vs Leo | 2–0 | 100.00% |
| RumaNuma vs Shaheen | 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.