| ONtaro vs Reina | 16–11 | 59.26% |
| ONtaro vs Law | 8–9 | 47.06% |
| ONtaro vs Kazuya | 10–6 | 62.50% |
| ONtaro vs Lili | 15–1 | 93.75% |
| ONtaro vs Dragunov | 6–8 | 42.86% |
| ONtaro vs King | 7–6 | 53.85% |
| ONtaro vs Eddy | 6–5 | 54.55% |
| ONtaro vs Zafina | 7–3 | 70.00% |
| ONtaro vs Leroy | 7–3 | 70.00% |
| ONtaro vs Asuka | 4–5 | 44.44% |
| ONtaro vs Leo | 3–4 | 42.86% |
| ONtaro vs Lee | 5–2 | 71.43% |
| ONtaro vs Jin | 4–2 | 66.67% |
| ONtaro vs Victor | 5–1 | 83.33% |
| ONtaro vs Heihachi | 2–4 | 33.33% |
| ONtaro vs Miary Zo | 3–3 | 50.00% |
| ONtaro vs Kuma | 3–2 | 60.00% |
| ONtaro vs Jun | 2–3 | 40.00% |
| ONtaro vs Yoshimitsu | 3–1 | 75.00% |
| ONtaro vs Hwoarang | 3–1 | 75.00% |
| ONtaro vs Bryan | 2–2 | 50.00% |
| ONtaro vs Lars | 3–1 | 75.00% |
| ONtaro vs Claudio | 2–2 | 50.00% |
| ONtaro vs Panda | 3–1 | 75.00% |
| ONtaro vs Azucena | 3–1 | 75.00% |
| ONtaro vs Fahkumram | 0–4 | 0.00% |
| ONtaro vs Paul | 1–2 | 33.33% |
| ONtaro vs Steve | 2–1 | 66.67% |
| ONtaro vs Devil Jin | 3–0 | 100.00% |
| ONtaro vs Nina | 0–3 | 0.00% |
| ONtaro vs Xiaoyu | 2–0 | 100.00% |
| ONtaro vs Feng | 0–2 | 0.00% |
| ONtaro vs Lidia | 0–2 | 0.00% |
| ONtaro vs Armor King | 2–0 | 100.00% |
| ONtaro vs Alisa | 0–1 | 0.00% |
| ONtaro vs Clive | 1–0 | 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.