| mamiya vs Kazuya | 427–532 | 44.53% |
| mamiya vs King | 387–518 | 42.76% |
| mamiya vs Bryan | 361–511 | 41.40% |
| mamiya vs Paul | 333–486 | 40.66% |
| mamiya vs Dragunov | 360–439 | 45.06% |
| mamiya vs Hwoarang | 320–426 | 42.90% |
| mamiya vs Reina | 356–390 | 47.72% |
| mamiya vs Jin | 316–383 | 45.21% |
| mamiya vs Lili | 278–368 | 43.03% |
| mamiya vs Asuka | 274–351 | 43.84% |
| mamiya vs Heihachi | 244–331 | 42.43% |
| mamiya vs Steve | 244–294 | 45.35% |
| mamiya vs Xiaoyu | 259–215 | 54.64% |
| mamiya vs Law | 230–233 | 49.68% |
| mamiya vs Jun | 216–215 | 50.12% |
| mamiya vs Yoshimitsu | 174–222–1 | 43.94% |
| mamiya vs Clive | 144–225 | 39.02% |
| mamiya vs Victor | 142–204 | 41.04% |
| mamiya vs Armor King | 142–197 | 41.89% |
| mamiya vs Lidia | 186–143 | 56.53% |
| mamiya vs Claudio | 138–171 | 44.66% |
| mamiya vs Azucena | 117–183 | 39.00% |
| mamiya vs Nina | 130–167 | 43.77% |
| mamiya vs Feng | 115–173 | 39.93% |
| mamiya vs Lars | 121–162 | 42.76% |
| mamiya vs Anna | 121–162 | 42.76% |
| mamiya vs Leo | 119–147 | 44.74% |
| mamiya vs Alisa | 111–144 | 43.53% |
| mamiya vs Lee | 107–120 | 47.14% |
| mamiya vs Fahkumram | 103–122 | 45.78% |
| mamiya vs Devil Jin | 94–126 | 42.73% |
| mamiya vs Leroy | 104–115 | 47.49% |
| mamiya vs Eddy | 106–113 | 48.40% |
| mamiya vs Jack-8 | 68–127 | 34.87% |
| mamiya vs Zafina | 69–107 | 39.20% |
| mamiya vs Raven | 52–91 | 36.36% |
| mamiya vs Shaheen | 60–81 | 42.55% |
| mamiya vs Kuma | 40–57 | 41.24% |
| mamiya vs Miary Zo | 30–40 | 42.86% |
| mamiya vs Panda | 24–37 | 39.34% |
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.