| Onderko vs Nina | 12–7 | 63.16% |
| Onderko vs Jin | 13–5 | 72.22% |
| Onderko vs Law | 13–4 | 76.47% |
| Onderko vs King | 11–5 | 68.75% |
| Onderko vs Jack-8 | 8–6 | 57.14% |
| Onderko vs Yoshimitsu | 8–4 | 66.67% |
| Onderko vs Heihachi | 10–0 | 100.00% |
| Onderko vs Asuka | 5–4 | 55.56% |
| Onderko vs Jun | 7–2 | 77.78% |
| Onderko vs Steve | 4–4 | 50.00% |
| Onderko vs Lee | 8–0 | 100.00% |
| Onderko vs Paul | 3–3 | 50.00% |
| Onderko vs Eddy | 3–3 | 50.00% |
| Onderko vs Clive | 2–4 | 33.33% |
| Onderko vs Xiaoyu | 1–4 | 20.00% |
| Onderko vs Bryan | 0–5 | 0.00% |
| Onderko vs Reina | 4–1 | 80.00% |
| Onderko vs Devil Jin | 3–1 | 75.00% |
| Onderko vs Zafina | 4–0 | 100.00% |
| Onderko vs Hwoarang | 3–0 | 100.00% |
| Onderko vs Kazuya | 2–1 | 66.67% |
| Onderko vs Lili | 3–0 | 100.00% |
| Onderko vs Alisa | 2–1 | 66.67% |
| Onderko vs Lidia | 2–1 | 66.67% |
| Onderko vs Kuma | 2–0 | 100.00% |
| Onderko vs Leroy | 2–0 | 100.00% |
| Onderko vs Feng | 1–0 | 100.00% |
| Onderko vs Dragunov | 0–1 | 0.00% |
| Onderko vs Claudio | 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.