| undr9round vs Alisa | 2–7 | 22.22% |
| undr9round vs Reina | 4–4 | 50.00% |
| undr9round vs Lili | 3–3 | 50.00% |
| undr9round vs King | 1–2 | 33.33% |
| undr9round vs Bryan | 0–3 | 0.00% |
| undr9round vs Asuka | 1–2 | 33.33% |
| undr9round vs Dragunov | 0–3 | 0.00% |
| undr9round vs Shaheen | 1–2 | 33.33% |
| undr9round vs Leroy | 1–2 | 33.33% |
| undr9round vs Law | 0–2 | 0.00% |
| undr9round vs Hwoarang | 0–2 | 0.00% |
| undr9round vs Xiaoyu | 2–0 | 100.00% |
| undr9round vs Kazuya | 2–0 | 100.00% |
| undr9round vs Lidia | 0–2 | 0.00% |
| undr9round vs Yoshimitsu | 0–1 | 0.00% |
| undr9round vs Claudio | 0–1 | 0.00% |
| undr9round vs Lee | 1–0 | 100.00% |
| undr9round vs Azucena | 1–0 | 100.00% |
| undr9round vs Eddy | 1–0 | 100.00% |
| undr9round vs Clive | 0–1 | 0.00% |
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.