| mammothcoffee vs Kazuya | 195–181 | 51.86% |
| mammothcoffee vs Bryan | 155–155 | 50.00% |
| mammothcoffee vs Paul | 174–133 | 56.68% |
| mammothcoffee vs Jin | 147–151–1 | 49.33% |
| mammothcoffee vs Reina | 169–116 | 59.30% |
| mammothcoffee vs Dragunov | 131–153 | 46.13% |
| mammothcoffee vs King | 124–142 | 46.62% |
| mammothcoffee vs Hwoarang | 92–137 | 40.17% |
| mammothcoffee vs Steve | 100–126 | 44.25% |
| mammothcoffee vs Lili | 85–129 | 39.72% |
| mammothcoffee vs Victor | 92–122 | 42.99% |
| mammothcoffee vs Armor King | 96–101 | 48.73% |
| mammothcoffee vs Asuka | 96–97 | 49.74% |
| mammothcoffee vs Azucena | 72–106 | 40.45% |
| mammothcoffee vs Law | 79–92 | 46.20% |
| mammothcoffee vs Devil Jin | 60–89 | 40.27% |
| mammothcoffee vs Jun | 49–93 | 34.51% |
| mammothcoffee vs Yoshimitsu | 56–76 | 42.42% |
| mammothcoffee vs Claudio | 64–54 | 54.24% |
| mammothcoffee vs Leo | 50–67 | 42.74% |
| mammothcoffee vs Feng | 45–70 | 39.13% |
| mammothcoffee vs Jack-8 | 45–66 | 40.54% |
| mammothcoffee vs Leroy | 44–66 | 40.00% |
| mammothcoffee vs Lars | 41–67 | 37.96% |
| mammothcoffee vs Lee | 44–64 | 40.74% |
| mammothcoffee vs Nina | 45–60 | 42.86% |
| mammothcoffee vs Xiaoyu | 35–56 | 38.46% |
| mammothcoffee vs Alisa | 29–55 | 34.52% |
| mammothcoffee vs Eddy | 22–53 | 29.33% |
| mammothcoffee vs Fahkumram | 33–34 | 49.25% |
| mammothcoffee vs Kuma | 19–42 | 31.15% |
| mammothcoffee vs Shaheen | 19–34 | 35.85% |
| mammothcoffee vs Raven | 24–28 | 46.15% |
| mammothcoffee vs Miary Zo | 21–30 | 41.18% |
| mammothcoffee vs Zafina | 17–33 | 34.00% |
| mammothcoffee vs Lidia | 16–23 | 41.03% |
| mammothcoffee vs Heihachi | 21–12 | 63.64% |
| mammothcoffee vs Anna | 7–15 | 31.82% |
| mammothcoffee vs Panda | 3–17 | 15.00% |
| mammothcoffee vs Clive | 8–9 | 47.06% |
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.