| UmDeUm vs Kazuya | 8–6 | 57.14% |
| UmDeUm vs Eddy | 9–5 | 64.29% |
| UmDeUm vs King | 10–3 | 76.92% |
| UmDeUm vs Jin | 9–3 | 75.00% |
| UmDeUm vs Steve | 11–1 | 91.67% |
| UmDeUm vs Law | 6–4 | 60.00% |
| UmDeUm vs Paul | 7–2 | 77.78% |
| UmDeUm vs Azucena | 6–3 | 66.67% |
| UmDeUm vs Bryan | 4–4 | 50.00% |
| UmDeUm vs Victor | 5–3 | 62.50% |
| UmDeUm vs Lee | 4–3 | 57.14% |
| UmDeUm vs Devil Jin | 4–2 | 66.67% |
| UmDeUm vs Jun | 4–2 | 66.67% |
| UmDeUm vs Asuka | 4–1 | 80.00% |
| UmDeUm vs Lili | 3–2 | 60.00% |
| UmDeUm vs Alisa | 4–1 | 80.00% |
| UmDeUm vs Raven | 4–1 | 80.00% |
| UmDeUm vs Hwoarang | 2–2 | 50.00% |
| UmDeUm vs Lars | 3–1 | 75.00% |
| UmDeUm vs Zafina | 2–2 | 50.00% |
| UmDeUm vs Reina | 3–1 | 75.00% |
| UmDeUm vs Xiaoyu | 3–0 | 100.00% |
| UmDeUm vs Dragunov | 2–1 | 66.67% |
| UmDeUm vs Leo | 2–1 | 66.67% |
| UmDeUm vs Shaheen | 3–0 | 100.00% |
| UmDeUm vs Yoshimitsu | 1–1 | 50.00% |
| UmDeUm vs Claudio | 2–0 | 100.00% |
| UmDeUm vs Nina | 1–1 | 50.00% |
| UmDeUm vs Kuma | 2–0 | 100.00% |
| UmDeUm vs Leroy | 2–0 | 100.00% |
| UmDeUm vs Lidia | 0–2 | 0.00% |
| UmDeUm 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.