| Pirelo vs Kazuya | 27–35 | 43.55% |
| Pirelo vs Jin | 27–34 | 44.26% |
| Pirelo vs Steve | 21–25 | 45.65% |
| Pirelo vs Bryan | 24–18 | 57.14% |
| Pirelo vs Law | 15–22 | 40.54% |
| Pirelo vs King | 15–22 | 40.54% |
| Pirelo vs Paul | 16–20 | 44.44% |
| Pirelo vs Hwoarang | 11–20 | 35.48% |
| Pirelo vs Victor | 9–20 | 31.03% |
| Pirelo vs Jun | 13–14 | 48.15% |
| Pirelo vs Clive | 7–16 | 30.43% |
| Pirelo vs Reina | 6–16 | 27.27% |
| Pirelo vs Heihachi | 10–12 | 45.45% |
| Pirelo vs Eddy | 12–9 | 57.14% |
| Pirelo vs Devil Jin | 5–15 | 25.00% |
| Pirelo vs Dragunov | 11–9 | 55.00% |
| Pirelo vs Anna | 4–16 | 20.00% |
| Pirelo vs Feng | 8–10 | 44.44% |
| Pirelo vs Leroy | 9–8 | 52.94% |
| Pirelo vs Yoshimitsu | 8–8 | 50.00% |
| Pirelo vs Lee | 8–8 | 50.00% |
| Pirelo vs Kuma | 5–11 | 31.25% |
| Pirelo vs Jack-8 | 4–10 | 28.57% |
| Pirelo vs Alisa | 7–6 | 53.85% |
| Pirelo vs Nina | 7–5 | 58.33% |
| Pirelo vs Leo | 1–8 | 11.11% |
| Pirelo vs Asuka | 6–1 | 85.71% |
| Pirelo vs Shaheen | 2–5 | 28.57% |
| Pirelo vs Azucena | 3–4 | 42.86% |
| Pirelo vs Lars | 2–4 | 33.33% |
| Pirelo vs Lili | 1–4 | 20.00% |
| Pirelo vs Raven | 2–3 | 40.00% |
| Pirelo vs Lidia | 0–4 | 0.00% |
| Pirelo vs Xiaoyu | 1–2 | 33.33% |
| Pirelo vs Panda | 0–2 | 0.00% |
| Pirelo vs Claudio | 1–0 | 100.00% |
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.