| OnionKid vs Reina | 31–28 | 52.54% |
| OnionKid vs Armor King | 22–20 | 52.38% |
| OnionKid vs Hwoarang | 14–21 | 40.00% |
| OnionKid vs Jin | 15–17 | 46.88% |
| OnionKid vs King | 14–17 | 45.16% |
| OnionKid vs Kazuya | 7–24 | 22.58% |
| OnionKid vs Lee | 11–16 | 40.74% |
| OnionKid vs Bryan | 10–16 | 38.46% |
| OnionKid vs Law | 11–13 | 45.83% |
| OnionKid vs Steve | 12–11 | 52.17% |
| OnionKid vs Asuka | 12–10 | 54.55% |
| OnionKid vs Azucena | 13–9 | 59.09% |
| OnionKid vs Anna | 11–11 | 50.00% |
| OnionKid vs Lili | 7–14 | 33.33% |
| OnionKid vs Jun | 10–10 | 50.00% |
| OnionKid vs Yoshimitsu | 6–11 | 35.29% |
| OnionKid vs Dragunov | 7–10 | 41.18% |
| OnionKid vs Xiaoyu | 7–9 | 43.75% |
| OnionKid vs Eddy | 9–7 | 56.25% |
| OnionKid vs Lidia | 7–9 | 43.75% |
| OnionKid vs Paul | 3–9 | 25.00% |
| OnionKid vs Lars | 7–4 | 63.64% |
| OnionKid vs Victor | 6–5 | 54.55% |
| OnionKid vs Jack-8 | 2–8 | 20.00% |
| OnionKid vs Raven | 9–1 | 90.00% |
| OnionKid vs Heihachi | 4–6 | 40.00% |
| OnionKid vs Shaheen | 6–2 | 75.00% |
| OnionKid vs Nina | 3–5 | 37.50% |
| OnionKid vs Leo | 1–6 | 14.29% |
| OnionKid vs Clive | 3–4 | 42.86% |
| OnionKid vs Devil Jin | 2–4 | 33.33% |
| OnionKid vs Zafina | 3–3 | 50.00% |
| OnionKid vs Leroy | 2–4 | 33.33% |
| OnionKid vs Feng | 3–2 | 60.00% |
| OnionKid vs Claudio | 3–2 | 60.00% |
| OnionKid vs Kuma | 2–3 | 40.00% |
| OnionKid vs Miary Zo | 2–3 | 40.00% |
| OnionKid vs Alisa | 1–2 | 33.33% |
| OnionKid vs Panda | 1–1 | 50.00% |
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.