| Maffew vs King | 8–4 | 66.67% |
| Maffew vs Bryan | 5–2 | 71.43% |
| Maffew vs Heihachi | 3–4 | 42.86% |
| Maffew vs Dragunov | 0–6 | 0.00% |
| Maffew vs Law | 2–3 | 40.00% |
| Maffew vs Jin | 0–5 | 0.00% |
| Maffew vs Lili | 2–3 | 40.00% |
| Maffew vs Eddy | 2–3 | 40.00% |
| Maffew vs Lidia | 1–3 | 25.00% |
| Maffew vs Hwoarang | 2–1 | 66.67% |
| Maffew vs Kazuya | 1–2 | 33.33% |
| Maffew vs Jack-8 | 2–1 | 66.67% |
| Maffew vs Lars | 0–3 | 0.00% |
| Maffew vs Claudio | 1–2 | 33.33% |
| Maffew vs Nina | 2–1 | 66.67% |
| Maffew vs Jun | 1–2 | 33.33% |
| Maffew vs Asuka | 0–2 | 0.00% |
| Maffew vs Devil Jin | 1–1 | 50.00% |
| Maffew vs Paul | 0–1 | 0.00% |
| Maffew vs Xiaoyu | 0–1 | 0.00% |
| Maffew vs Shaheen | 0–1 | 0.00% |
| Maffew vs Reina | 0–1 | 0.00% |
| Maffew vs Azucena | 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.