| 1966 まさひこ vs Heihachi | 19–21 | 47.50% |
| 1966 まさひこ vs King | 32–7 | 82.05% |
| 1966 まさひこ vs Hwoarang | 25–13 | 65.79% |
| 1966 まさひこ vs Kazuya | 24–9 | 72.73% |
| 1966 まさひこ vs Paul | 20–12 | 62.50% |
| 1966 まさひこ vs Dragunov | 20–11 | 64.52% |
| 1966 まさひこ vs Bryan | 19–9 | 67.86% |
| 1966 まさひこ vs Law | 15–11 | 57.69% |
| 1966 まさひこ vs Yoshimitsu | 15–11 | 57.69% |
| 1966 まさひこ vs Reina | 17–8 | 68.00% |
| 1966 まさひこ vs Jin | 16–6 | 72.73% |
| 1966 まさひこ vs Steve | 12–10 | 54.55% |
| 1966 まさひこ vs Asuka | 12–10 | 54.55% |
| 1966 まさひこ vs Lili | 11–8 | 57.89% |
| 1966 まさひこ vs Victor | 8–10 | 44.44% |
| 1966 まさひこ vs Lee | 8–8 | 50.00% |
| 1966 まさひこ vs Jun | 8–8 | 50.00% |
| 1966 まさひこ vs Feng | 7–8 | 46.67% |
| 1966 まさひこ vs Leo | 8–5 | 61.54% |
| 1966 まさひこ vs Anna | 4–9 | 30.77% |
| 1966 まさひこ vs Azucena | 10–2 | 83.33% |
| 1966 まさひこ vs Alisa | 9–2 | 81.82% |
| 1966 まさひこ vs Eddy | 6–5 | 54.55% |
| 1966 まさひこ vs Lidia | 6–5 | 54.55% |
| 1966 まさひこ vs Fahkumram | 3–7 | 30.00% |
| 1966 まさひこ vs Jack-8 | 6–3 | 66.67% |
| 1966 まさひこ vs Devil Jin | 5–3 | 62.50% |
| 1966 まさひこ vs Claudio | 5–3 | 62.50% |
| 1966 まさひこ vs Clive | 2–5 | 28.57% |
| 1966 まさひこ vs Xiaoyu | 3–3 | 50.00% |
| 1966 まさひこ vs Zafina | 1–5 | 16.67% |
| 1966 まさひこ vs Raven | 3–3 | 50.00% |
| 1966 まさひこ vs Shaheen | 1–4 | 20.00% |
| 1966 まさひこ vs Kuma | 2–3 | 40.00% |
| 1966 まさひこ vs Leroy | 1–4 | 20.00% |
| 1966 まさひこ vs Nina | 2–2 | 50.00% |
| 1966 まさひこ vs Lars | 0–3 | 0.00% |
| 1966 まさひこ vs Panda | 1–2 | 33.33% |
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.