| Onion Monkey vs King | 15–4 | 78.95% |
| Onion Monkey vs Law | 11–6 | 64.71% |
| Onion Monkey vs Steve | 12–5 | 70.59% |
| Onion Monkey vs Reina | 8–7 | 53.33% |
| Onion Monkey vs Kazuya | 3–11 | 21.43% |
| Onion Monkey vs Jin | 4–6 | 40.00% |
| Onion Monkey vs Bryan | 2–8 | 20.00% |
| Onion Monkey vs Asuka | 8–2 | 80.00% |
| Onion Monkey vs Dragunov | 7–3 | 70.00% |
| Onion Monkey vs Zafina | 4–4 | 50.00% |
| Onion Monkey vs Azucena | 6–2 | 75.00% |
| Onion Monkey vs Hwoarang | 6–1 | 85.71% |
| Onion Monkey vs Paul | 1–5 | 16.67% |
| Onion Monkey vs Lee | 3–3 | 50.00% |
| Onion Monkey vs Jun | 1–5 | 16.67% |
| Onion Monkey vs Feng | 3–2 | 60.00% |
| Onion Monkey vs Devil Jin | 3–1 | 75.00% |
| Onion Monkey vs Leo | 4–0 | 100.00% |
| Onion Monkey vs Victor | 2–2 | 50.00% |
| Onion Monkey vs Eddy | 1–3 | 25.00% |
| Onion Monkey vs Yoshimitsu | 1–2 | 33.33% |
| Onion Monkey vs Xiaoyu | 1–2 | 33.33% |
| Onion Monkey vs Shaheen | 0–3 | 0.00% |
| Onion Monkey vs Leroy | 0–3 | 0.00% |
| Onion Monkey vs Anna | 2–1 | 66.67% |
| Onion Monkey vs Lili | 2–0 | 100.00% |
| Onion Monkey vs Nina | 2–0 | 100.00% |
| Onion Monkey vs Kuma | 2–0 | 100.00% |
| Onion Monkey vs Raven | 2–0 | 100.00% |
| Onion Monkey vs Lidia | 0–2 | 0.00% |
| Onion Monkey vs Jack-8 | 1–0 | 100.00% |
| Onion Monkey vs Lars | 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.