| Onigashima vs Bryan | 9–6 | 60.00% |
| Onigashima vs Steve | 7–5 | 58.33% |
| Onigashima vs Jin | 6–4 | 60.00% |
| Onigashima vs Reina | 6–3 | 66.67% |
| Onigashima vs Yoshimitsu | 4–4 | 50.00% |
| Onigashima vs Xiaoyu | 4–4 | 50.00% |
| Onigashima vs Kazuya | 5–1 | 83.33% |
| Onigashima vs Jun | 4–2 | 66.67% |
| Onigashima vs Law | 4–1 | 80.00% |
| Onigashima vs King | 1–4 | 20.00% |
| Onigashima vs Dragunov | 4–1 | 80.00% |
| Onigashima vs Hwoarang | 0–4 | 0.00% |
| Onigashima vs Devil Jin | 1–3 | 25.00% |
| Onigashima vs Paul | 1–2 | 33.33% |
| Onigashima vs Asuka | 3–0 | 100.00% |
| Onigashima vs Lili | 0–3 | 0.00% |
| Onigashima vs Nina | 2–1 | 66.67% |
| Onigashima vs Victor | 1–2 | 33.33% |
| Onigashima vs Clive | 1–2 | 33.33% |
| Onigashima vs Leo | 0–2 | 0.00% |
| Onigashima vs Raven | 0–2 | 0.00% |
| Onigashima vs Eddy | 1–1 | 50.00% |
| Onigashima vs Feng | 0–1 | 0.00% |
| Onigashima vs Alisa | 0–1 | 0.00% |
| Onigashima vs Claudio | 0–1 | 0.00% |
| Onigashima vs Lee | 1–0 | 100.00% |
| Onigashima vs Kuma | 0–1 | 0.00% |
| Onigashima vs Leroy | 0–1 | 0.00% |
| Onigashima vs Azucena | 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.