| Piotrollo vs Kazuya | 466–448 | 50.98% |
| Piotrollo vs Hwoarang | 525–378 | 58.14% |
| Piotrollo vs Jin | 425–456 | 48.24% |
| Piotrollo vs Law | 331–356–1 | 48.18% |
| Piotrollo vs Bryan | 318–338 | 48.48% |
| Piotrollo vs King | 294–308 | 48.84% |
| Piotrollo vs Paul | 241–255–1 | 48.59% |
| Piotrollo vs Steve | 234–240 | 49.37% |
| Piotrollo vs Reina | 209–253 | 45.24% |
| Piotrollo vs Heihachi | 173–249–1 | 41.00% |
| Piotrollo vs Dragunov | 210–208 | 50.24% |
| Piotrollo vs Lili | 185–229–1 | 44.69% |
| Piotrollo vs Lee | 192–223 | 46.27% |
| Piotrollo vs Yoshimitsu | 158–239 | 39.80% |
| Piotrollo vs Devil Jin | 164–204 | 44.57% |
| Piotrollo vs Lars | 139–157 | 46.96% |
| Piotrollo vs Xiaoyu | 129–166 | 43.73% |
| Piotrollo vs Feng | 123–160 | 43.46% |
| Piotrollo vs Asuka | 111–147 | 43.02% |
| Piotrollo vs Nina | 120–133 | 47.43% |
| Piotrollo vs Azucena | 119–130 | 47.79% |
| Piotrollo vs Jun | 98–146 | 40.16% |
| Piotrollo vs Victor | 91–128 | 41.55% |
| Piotrollo vs Leroy | 114–95 | 54.55% |
| Piotrollo vs Eddy | 102–106 | 49.04% |
| Piotrollo vs Alisa | 108–92 | 54.00% |
| Piotrollo vs Lidia | 78–103 | 43.09% |
| Piotrollo vs Fahkumram | 80–82 | 49.38% |
| Piotrollo vs Jack-8 | 67–81 | 45.27% |
| Piotrollo vs Armor King | 61–77 | 44.20% |
| Piotrollo vs Raven | 53–78 | 40.46% |
| Piotrollo vs Clive | 61–65 | 48.41% |
| Piotrollo vs Anna | 48–74 | 39.34% |
| Piotrollo vs Leo | 38–70 | 35.19% |
| Piotrollo vs Claudio | 48–53 | 47.52% |
| Piotrollo vs Kuma | 37–61 | 37.76% |
| Piotrollo vs Shaheen | 39–57 | 40.62% |
| Piotrollo vs Zafina | 27–43 | 38.57% |
| Piotrollo vs Miary Zo | 26–39 | 40.00% |
| Piotrollo vs Panda | 8–13 | 38.10% |
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.