| Mamaguevo vs Kazuya | 193–204 | 48.61% |
| Mamaguevo vs King | 142–184 | 43.56% |
| Mamaguevo vs Jin | 128–149 | 46.21% |
| Mamaguevo vs Bryan | 125–145 | 46.30% |
| Mamaguevo vs Reina | 113–139 | 44.84% |
| Mamaguevo vs Law | 110–141 | 43.82% |
| Mamaguevo vs Heihachi | 123–111 | 52.56% |
| Mamaguevo vs Steve | 110–121–1 | 47.62% |
| Mamaguevo vs Hwoarang | 103–125 | 45.18% |
| Mamaguevo vs Lidia | 104–98 | 51.49% |
| Mamaguevo vs Azucena | 103–78 | 56.91% |
| Mamaguevo vs Dragunov | 91–89 | 50.56% |
| Mamaguevo vs Paul | 79–95 | 45.40% |
| Mamaguevo vs Lili | 86–88 | 49.43% |
| Mamaguevo vs Lee | 69–95 | 42.07% |
| Mamaguevo vs Lars | 71–81 | 46.71% |
| Mamaguevo vs Jun | 78–74 | 51.32% |
| Mamaguevo vs Yoshimitsu | 70–76 | 47.95% |
| Mamaguevo vs Fahkumram | 57–74 | 43.51% |
| Mamaguevo vs Armor King | 43–76 | 36.13% |
| Mamaguevo vs Asuka | 53–61 | 46.49% |
| Mamaguevo vs Nina | 39–75 | 34.21% |
| Mamaguevo vs Devil Jin | 61–51 | 54.46% |
| Mamaguevo vs Eddy | 58–50 | 53.70% |
| Mamaguevo vs Xiaoyu | 53–54 | 49.53% |
| Mamaguevo vs Alisa | 48–54 | 47.06% |
| Mamaguevo vs Feng | 49–50 | 49.49% |
| Mamaguevo vs Leo | 44–49 | 47.31% |
| Mamaguevo vs Victor | 40–52 | 43.48% |
| Mamaguevo vs Raven | 36–45 | 44.44% |
| Mamaguevo vs Leroy | 37–42 | 46.84% |
| Mamaguevo vs Jack-8 | 39–39 | 50.00% |
| Mamaguevo vs Claudio | 34–40 | 45.95% |
| Mamaguevo vs Miary Zo | 35–35 | 50.00% |
| Mamaguevo vs Anna | 17–38 | 30.91% |
| Mamaguevo vs Zafina | 21–26 | 44.68% |
| Mamaguevo vs Clive | 24–18 | 57.14% |
| Mamaguevo vs Shaheen | 16–24 | 40.00% |
| Mamaguevo vs Kuma | 17–23 | 42.50% |
| Mamaguevo vs Panda | 4–11 | 26.67% |
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.