| Mamut vs Kazuya | 16–10 | 61.54% |
| Mamut vs King | 12–10 | 54.55% |
| Mamut vs Steve | 12–7 | 63.16% |
| Mamut vs Reina | 6–8 | 42.86% |
| Mamut vs Bryan | 6–6 | 50.00% |
| Mamut vs Yoshimitsu | 6–5 | 54.55% |
| Mamut vs Azucena | 5–6 | 45.45% |
| Mamut vs Hwoarang | 5–4 | 55.56% |
| Mamut vs Jin | 5–4 | 55.56% |
| Mamut vs Lidia | 6–3 | 66.67% |
| Mamut vs Jack-8 | 6–2 | 75.00% |
| Mamut vs Feng | 2–6 | 25.00% |
| Mamut vs Law | 6–1 | 85.71% |
| Mamut vs Heihachi | 4–3 | 57.14% |
| Mamut vs Paul | 3–3 | 50.00% |
| Mamut vs Dragunov | 5–1 | 83.33% |
| Mamut vs Lars | 2–4 | 33.33% |
| Mamut vs Lee | 4–2 | 66.67% |
| Mamut vs Lili | 3–2 | 60.00% |
| Mamut vs Nina | 3–2 | 60.00% |
| Mamut vs Kuma | 4–1 | 80.00% |
| Mamut vs Victor | 4–1 | 80.00% |
| Mamut vs Asuka | 0–4 | 0.00% |
| Mamut vs Jun | 3–1 | 75.00% |
| Mamut vs Xiaoyu | 1–2 | 33.33% |
| Mamut vs Alisa | 2–1 | 66.67% |
| Mamut vs Panda | 3–0 | 100.00% |
| Mamut vs Zafina | 2–1 | 66.67% |
| Mamut vs Leroy | 3–0 | 100.00% |
| Mamut vs Devil Jin | 1–1 | 50.00% |
| Mamut vs Shaheen | 2–0 | 100.00% |
| Mamut 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.