| Onix vs Steve | 7–10 | 41.18% |
| Onix vs Azucena | 4–8 | 33.33% |
| Onix vs Law | 4–5 | 44.44% |
| Onix vs Reina | 7–2 | 77.78% |
| Onix vs King | 3–4 | 42.86% |
| Onix vs Lars | 4–3 | 57.14% |
| Onix vs Heihachi | 5–2 | 71.43% |
| Onix vs Clive | 4–3 | 57.14% |
| Onix vs Kazuya | 1–4 | 20.00% |
| Onix vs Alisa | 3–2 | 60.00% |
| Onix vs Nina | 2–3 | 40.00% |
| Onix vs Anna | 2–3 | 40.00% |
| Onix vs Hwoarang | 0–4 | 0.00% |
| Onix vs Asuka | 0–4 | 0.00% |
| Onix vs Jun | 4–0 | 100.00% |
| Onix vs Paul | 2–1 | 66.67% |
| Onix vs Jin | 1–2 | 33.33% |
| Onix vs Raven | 1–2 | 33.33% |
| Onix vs Yoshimitsu | 0–2 | 0.00% |
| Onix vs Xiaoyu | 0–2 | 0.00% |
| Onix vs Devil Jin | 0–2 | 0.00% |
| Onix vs Lili | 0–2 | 0.00% |
| Onix vs Eddy | 2–0 | 100.00% |
| Onix vs Dragunov | 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.