| UnderF4ker vs Hwoarang | 7–6 | 53.85% |
| UnderF4ker vs Steve | 7–6 | 53.85% |
| UnderF4ker vs Victor | 6–5 | 54.55% |
| UnderF4ker vs King | 4–6 | 40.00% |
| UnderF4ker vs Asuka | 7–3 | 70.00% |
| UnderF4ker vs Alisa | 3–6 | 33.33% |
| UnderF4ker vs Reina | 7–2 | 77.78% |
| UnderF4ker vs Yoshimitsu | 5–2 | 71.43% |
| UnderF4ker vs Jun | 2–5 | 28.57% |
| UnderF4ker vs Jin | 2–4 | 33.33% |
| UnderF4ker vs Kazuya | 2–4 | 33.33% |
| UnderF4ker vs Lili | 1–4 | 20.00% |
| UnderF4ker vs Paul | 0–4 | 0.00% |
| UnderF4ker vs Bryan | 2–2 | 50.00% |
| UnderF4ker vs Claudio | 3–1 | 75.00% |
| UnderF4ker vs Raven | 2–2 | 50.00% |
| UnderF4ker vs Eddy | 0–4 | 0.00% |
| UnderF4ker vs Law | 1–2 | 33.33% |
| UnderF4ker vs Jack-8 | 0–3 | 0.00% |
| UnderF4ker vs Dragunov | 1–2 | 33.33% |
| UnderF4ker vs Leo | 3–0 | 100.00% |
| UnderF4ker vs Xiaoyu | 2–0 | 100.00% |
| UnderF4ker vs Feng | 0–2 | 0.00% |
| UnderF4ker vs Nina | 0–2 | 0.00% |
| UnderF4ker vs Lee | 2–0 | 100.00% |
| UnderF4ker vs Devil Jin | 1–0 | 100.00% |
| UnderF4ker vs Lars | 1–0 | 100.00% |
| UnderF4ker vs Azucena | 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.