| Attamamma vs Bryan | 177–124 | 58.80% |
| Attamamma vs Kazuya | 174–117 | 59.79% |
| Attamamma vs Dragunov | 161–93 | 63.39% |
| Attamamma vs Jin | 144–108 | 57.14% |
| Attamamma vs Heihachi | 148–82 | 64.35% |
| Attamamma vs King | 132–83 | 61.40% |
| Attamamma vs Hwoarang | 144–70 | 67.29% |
| Attamamma vs Clive | 136–62 | 68.69% |
| Attamamma vs Asuka | 113–61 | 64.94% |
| Attamamma vs Paul | 113–60 | 65.32% |
| Attamamma vs Reina | 120–51 | 70.18% |
| Attamamma vs Steve | 103–67 | 60.59% |
| Attamamma vs Yoshimitsu | 95–57 | 62.50% |
| Attamamma vs Lars | 80–69 | 53.69% |
| Attamamma vs Victor | 81–64 | 55.86% |
| Attamamma vs Law | 88–54 | 61.97% |
| Attamamma vs Feng | 73–56 | 56.59% |
| Attamamma vs Lili | 90–39 | 69.77% |
| Attamamma vs Devil Jin | 67–59 | 53.17% |
| Attamamma vs Fahkumram | 81–44 | 64.80% |
| Attamamma vs Claudio | 85–33 | 72.03% |
| Attamamma vs Leroy | 86–32 | 72.88% |
| Attamamma vs Nina | 69–46 | 60.00% |
| Attamamma vs Azucena | 59–51 | 53.64% |
| Attamamma vs Lee | 68–38 | 64.15% |
| Attamamma vs Jack-8 | 53–43 | 55.21% |
| Attamamma vs Alisa | 58–38 | 60.42% |
| Attamamma vs Leo | 54–38 | 58.70% |
| Attamamma vs Armor King | 53–31 | 63.10% |
| Attamamma vs Xiaoyu | 42–33 | 56.00% |
| Attamamma vs Shaheen | 40–35 | 53.33% |
| Attamamma vs Jun | 44–30 | 59.46% |
| Attamamma vs Lidia | 37–31 | 54.41% |
| Attamamma vs Raven | 32–28 | 53.33% |
| Attamamma vs Eddy | 38–22 | 63.33% |
| Attamamma vs Zafina | 20–31 | 39.22% |
| Attamamma vs Kuma | 13–23 | 36.11% |
| Attamamma vs Anna | 16–6 | 72.73% |
| Attamamma vs Panda | 4–13 | 23.53% |
| Attamamma vs Miary Zo | 2–4 | 33.33% |
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.