| amumu vs Heihachi | 18–9 | 66.67% |
| amumu vs King | 19–6 | 76.00% |
| amumu vs Reina | 14–6 | 70.00% |
| amumu vs Hwoarang | 15–3 | 83.33% |
| amumu vs Kazuya | 10–5 | 66.67% |
| amumu vs Jun | 8–7 | 53.33% |
| amumu vs Lidia | 8–7 | 53.33% |
| amumu vs Asuka | 8–5 | 61.54% |
| amumu vs Lili | 9–3 | 75.00% |
| amumu vs Nina | 8–4 | 66.67% |
| amumu vs Paul | 6–5 | 54.55% |
| amumu vs Steve | 5–6 | 45.45% |
| amumu vs Xiaoyu | 6–4 | 60.00% |
| amumu vs Jin | 5–3 | 62.50% |
| amumu vs Dragunov | 7–1 | 87.50% |
| amumu vs Devil Jin | 6–1 | 85.71% |
| amumu vs Feng | 3–4 | 42.86% |
| amumu vs Azucena | 7–0 | 100.00% |
| amumu vs Claudio | 3–3 | 50.00% |
| amumu vs Victor | 2–4 | 33.33% |
| amumu vs Law | 1–4 | 20.00% |
| amumu vs Bryan | 3–2 | 60.00% |
| amumu vs Shaheen | 2–3 | 40.00% |
| amumu vs Eddy | 3–2 | 60.00% |
| amumu vs Lars | 2–2 | 50.00% |
| amumu vs Alisa | 2–2 | 50.00% |
| amumu vs Yoshimitsu | 3–0 | 100.00% |
| amumu vs Lee | 1–1 | 50.00% |
| amumu vs Kuma | 1–1 | 50.00% |
| amumu vs Leroy | 0–2 | 0.00% |
| amumu vs Raven | 2–0 | 100.00% |
| amumu vs Leo | 1–0 | 100.00% |
| amumu vs Jack-8 | 1–0 | 100.00% |
| amumu vs Zafina | 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.