| UnpopularOnion vs King | 10–8 | 55.56% |
| UnpopularOnion vs Hwoarang | 12–6 | 66.67% |
| UnpopularOnion vs Bryan | 8–9 | 47.06% |
| UnpopularOnion vs Heihachi | 11–5 | 68.75% |
| UnpopularOnion vs Jin | 7–8 | 46.67% |
| UnpopularOnion vs Devil Jin | 6–7 | 46.15% |
| UnpopularOnion vs Jun | 10–2 | 83.33% |
| UnpopularOnion vs Reina | 10–1 | 90.91% |
| UnpopularOnion vs Paul | 6–4 | 60.00% |
| UnpopularOnion vs Law | 7–3 | 70.00% |
| UnpopularOnion vs Steve | 3–7 | 30.00% |
| UnpopularOnion vs Kazuya | 6–3 | 66.67% |
| UnpopularOnion vs Victor | 6–3 | 66.67% |
| UnpopularOnion vs Lee | 4–4 | 50.00% |
| UnpopularOnion vs Lili | 5–2 | 71.43% |
| UnpopularOnion vs Lars | 5–2 | 71.43% |
| UnpopularOnion vs Raven | 3–3 | 50.00% |
| UnpopularOnion vs Feng | 3–2 | 60.00% |
| UnpopularOnion vs Dragunov | 3–2 | 60.00% |
| UnpopularOnion vs Lidia | 4–1 | 80.00% |
| UnpopularOnion vs Asuka | 3–1 | 75.00% |
| UnpopularOnion vs Fahkumram | 1–3 | 25.00% |
| UnpopularOnion vs Xiaoyu | 1–2 | 33.33% |
| UnpopularOnion vs Claudio | 1–2 | 33.33% |
| UnpopularOnion vs Kuma | 1–2 | 33.33% |
| UnpopularOnion vs Leroy | 1–2 | 33.33% |
| UnpopularOnion vs Eddy | 2–1 | 66.67% |
| UnpopularOnion vs Panda | 1–1 | 50.00% |
| UnpopularOnion vs Azucena | 1–1 | 50.00% |
| UnpopularOnion vs Anna | 2–0 | 100.00% |
| UnpopularOnion vs Shaheen | 1–0 | 100.00% |
| UnpopularOnion vs Nina | 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.