| Rumioi vs Armor King | 28–37 | 43.08% |
| Rumioi vs Kazuya | 15–31 | 32.61% |
| Rumioi vs King | 21–23 | 47.73% |
| Rumioi vs Fahkumram | 18–18 | 50.00% |
| Rumioi vs Reina | 24–10 | 70.59% |
| Rumioi vs Jin | 13–18 | 41.94% |
| Rumioi vs Dragunov | 14–15 | 48.28% |
| Rumioi vs Heihachi | 8–20 | 28.57% |
| Rumioi vs Paul | 7–19 | 26.92% |
| Rumioi vs Bryan | 13–8 | 61.90% |
| Rumioi vs Lili | 7–14 | 33.33% |
| Rumioi vs Anna | 7–14 | 33.33% |
| Rumioi vs Hwoarang | 12–8 | 60.00% |
| Rumioi vs Azucena | 7–13 | 35.00% |
| Rumioi vs Law | 11–8 | 57.89% |
| Rumioi vs Steve | 11–6 | 64.71% |
| Rumioi vs Clive | 6–9 | 40.00% |
| Rumioi vs Miary Zo | 8–7 | 53.33% |
| Rumioi vs Eddy | 3–11 | 21.43% |
| Rumioi vs Xiaoyu | 4–9 | 30.77% |
| Rumioi vs Lidia | 7–6 | 53.85% |
| Rumioi vs Lee | 5–7 | 41.67% |
| Rumioi vs Victor | 7–5 | 58.33% |
| Rumioi vs Asuka | 4–6 | 40.00% |
| Rumioi vs Lars | 3–6 | 33.33% |
| Rumioi vs Kuma | 5–4 | 55.56% |
| Rumioi vs Jun | 4–5 | 44.44% |
| Rumioi vs Devil Jin | 4–4 | 50.00% |
| Rumioi vs Leo | 5–3 | 62.50% |
| Rumioi vs Yoshimitsu | 2–4 | 33.33% |
| Rumioi vs Claudio | 2–4 | 33.33% |
| Rumioi vs Feng | 2–3 | 40.00% |
| Rumioi vs Panda | 1–3 | 25.00% |
| Rumioi vs Nina | 1–2 | 33.33% |
| Rumioi vs Leroy | 2–1 | 66.67% |
| Rumioi vs Jack-8 | 1–1 | 50.00% |
| Rumioi vs Shaheen | 1–1 | 50.00% |
| Rumioi vs Raven | 2–0 | 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.