| Mamm0n vs Heihachi | 21–8 | 72.41% |
| Mamm0n vs Reina | 12–5 | 70.59% |
| Mamm0n vs Steve | 6–2 | 75.00% |
| Mamm0n vs Kazuya | 5–1 | 83.33% |
| Mamm0n vs Alisa | 1–5 | 16.67% |
| Mamm0n vs Jin | 5–0 | 100.00% |
| Mamm0n vs Lili | 2–3 | 40.00% |
| Mamm0n vs Paul | 4–0 | 100.00% |
| Mamm0n vs Hwoarang | 4–0 | 100.00% |
| Mamm0n vs Leo | 4–0 | 100.00% |
| Mamm0n vs Azucena | 4–0 | 100.00% |
| Mamm0n vs King | 3–0 | 100.00% |
| Mamm0n vs Lee | 1–2 | 33.33% |
| Mamm0n vs Devil Jin | 2–0 | 100.00% |
| Mamm0n vs Kuma | 2–0 | 100.00% |
| Mamm0n vs Eddy | 2–0 | 100.00% |
| Mamm0n vs Victor | 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.