| Onichan vs Jin | 37–48 | 43.53% |
| Onichan vs Kazuya | 46–35 | 56.79% |
| Onichan vs King | 40–24 | 62.50% |
| Onichan vs Dragunov | 35–19 | 64.81% |
| Onichan vs Steve | 41–11 | 78.85% |
| Onichan vs Law | 23–28 | 45.10% |
| Onichan vs Reina | 26–21 | 55.32% |
| Onichan vs Bryan | 29–16 | 64.44% |
| Onichan vs Lee | 29–16 | 64.44% |
| Onichan vs Hwoarang | 23–21 | 52.27% |
| Onichan vs Azucena | 25–16 | 60.98% |
| Onichan vs Lars | 22–18 | 55.00% |
| Onichan vs Leo | 23–16 | 58.97% |
| Onichan vs Eddy | 23–16 | 58.97% |
| Onichan vs Jun | 25–10 | 71.43% |
| Onichan vs Yoshimitsu | 24–10 | 70.59% |
| Onichan vs Paul | 17–14 | 54.84% |
| Onichan vs Feng | 15–16 | 48.39% |
| Onichan vs Asuka | 16–12 | 57.14% |
| Onichan vs Devil Jin | 15–12 | 55.56% |
| Onichan vs Nina | 12–14 | 46.15% |
| Onichan vs Lili | 12–11 | 52.17% |
| Onichan vs Victor | 11–10 | 52.38% |
| Onichan vs Raven | 12–9 | 57.14% |
| Onichan vs Clive | 16–4 | 80.00% |
| Onichan vs Leroy | 17–2 | 89.47% |
| Onichan vs Heihachi | 12–5 | 70.59% |
| Onichan vs Claudio | 9–7 | 56.25% |
| Onichan vs Zafina | 8–8 | 50.00% |
| Onichan vs Jack-8 | 8–7 | 53.33% |
| Onichan vs Kuma | 9–6 | 60.00% |
| Onichan vs Alisa | 4–9 | 30.77% |
| Onichan vs Lidia | 9–4 | 69.23% |
| Onichan vs Xiaoyu | 4–4 | 50.00% |
| Onichan vs Panda | 6–2 | 75.00% |
| Onichan vs Shaheen | 5–0 | 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.