| Ummmm vs King | 15–14 | 51.72% |
| Ummmm vs Jin | 7–16 | 30.43% |
| Ummmm vs Kazuya | 9–12 | 42.86% |
| Ummmm vs Bryan | 4–14 | 22.22% |
| Ummmm vs Lidia | 4–10 | 28.57% |
| Ummmm vs Steve | 4–8 | 33.33% |
| Ummmm vs Reina | 8–1 | 88.89% |
| Ummmm vs Devil Jin | 3–5 | 37.50% |
| Ummmm vs Law | 4–3 | 57.14% |
| Ummmm vs Yoshimitsu | 2–5 | 28.57% |
| Ummmm vs Dragunov | 4–3 | 57.14% |
| Ummmm vs Hwoarang | 1–5 | 16.67% |
| Ummmm vs Azucena | 2–4 | 33.33% |
| Ummmm vs Xiaoyu | 2–4 | 33.33% |
| Ummmm vs Paul | 0–5 | 0.00% |
| Ummmm vs Nina | 5–0 | 100.00% |
| Ummmm vs Heihachi | 1–4 | 20.00% |
| Ummmm vs Lars | 1–4 | 20.00% |
| Ummmm vs Lee | 2–3 | 40.00% |
| Ummmm vs Lili | 1–2 | 33.33% |
| Ummmm vs Leo | 2–1 | 66.67% |
| Ummmm vs Claudio | 1–2 | 33.33% |
| Ummmm vs Shaheen | 0–3 | 0.00% |
| Ummmm vs Kuma | 2–0 | 100.00% |
| Ummmm vs Jun | 0–2 | 0.00% |
| Ummmm vs Victor | 0–2 | 0.00% |
| Ummmm vs Eddy | 0–2 | 0.00% |
| Ummmm vs Alisa | 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.