| Piorrea vs Dragunov | 4–4 | 50.00% |
| Piorrea vs King | 3–3 | 50.00% |
| Piorrea vs Hwoarang | 2–3 | 40.00% |
| Piorrea vs Raven | 1–2 | 33.33% |
| Piorrea vs Miary Zo | 2–1 | 66.67% |
| Piorrea vs Lili | 0–2 | 0.00% |
| Piorrea vs Lars | 0–2 | 0.00% |
| Piorrea vs Alisa | 0–2 | 0.00% |
| Piorrea vs Nina | 1–1 | 50.00% |
| Piorrea vs Armor King | 2–0 | 100.00% |
| Piorrea vs Jin | 0–1 | 0.00% |
| Piorrea vs Reina | 0–1 | 0.00% |
| Piorrea vs Lidia | 0–1 | 0.00% |
| Piorrea vs Heihachi | 0–1 | 0.00% |
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.