| Piresgru vs Reina | 15–22 | 40.54% |
| Piresgru vs Hwoarang | 4–18 | 18.18% |
| Piresgru vs Kazuya | 6–16 | 27.27% |
| Piresgru vs King | 4–17 | 19.05% |
| Piresgru vs Bryan | 8–13 | 38.10% |
| Piresgru vs Steve | 11–10 | 52.38% |
| Piresgru vs Jin | 3–17 | 15.00% |
| Piresgru vs Asuka | 5–14 | 26.32% |
| Piresgru vs Victor | 7–11 | 38.89% |
| Piresgru vs Xiaoyu | 6–11 | 35.29% |
| Piresgru vs Law | 4–11 | 26.67% |
| Piresgru vs Devil Jin | 5–10 | 33.33% |
| Piresgru vs Eddy | 3–12 | 20.00% |
| Piresgru vs Nina | 3–11 | 21.43% |
| Piresgru vs Lili | 3–9 | 25.00% |
| Piresgru vs Alisa | 3–9 | 25.00% |
| Piresgru vs Azucena | 4–7 | 36.36% |
| Piresgru vs Feng | 2–6 | 25.00% |
| Piresgru vs Dragunov | 3–5 | 37.50% |
| Piresgru vs Jun | 3–5 | 37.50% |
| Piresgru vs Yoshimitsu | 2–5 | 28.57% |
| Piresgru vs Lars | 2–5 | 28.57% |
| Piresgru vs Leroy | 2–3 | 40.00% |
| Piresgru vs Paul | 0–4 | 0.00% |
| Piresgru vs Claudio | 2–1 | 66.67% |
| Piresgru vs Kuma | 0–3 | 0.00% |
| Piresgru vs Panda | 1–2 | 33.33% |
| Piresgru vs Raven | 0–3 | 0.00% |
| Piresgru vs Leo | 0–2 | 0.00% |
| Piresgru vs Lee | 0–2 | 0.00% |
| Piresgru vs Lidia | 0–2 | 0.00% |
| Piresgru vs Jack-8 | 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.