| Pietro vs Armor King | 53–63 | 45.69% |
| Pietro vs Law | 47–50 | 48.45% |
| Pietro vs King | 36–51 | 41.38% |
| Pietro vs Jin | 32–44 | 42.11% |
| Pietro vs Steve | 37–32–1 | 53.62% |
| Pietro vs Hwoarang | 32–37 | 46.38% |
| Pietro vs Kazuya | 32–36 | 47.06% |
| Pietro vs Bryan | 25–20 | 55.56% |
| Pietro vs Jun | 24–21 | 53.33% |
| Pietro vs Yoshimitsu | 14–30 | 31.82% |
| Pietro vs Dragunov | 23–21 | 52.27% |
| Pietro vs Lili | 23–18 | 56.10% |
| Pietro vs Reina | 18–22 | 45.00% |
| Pietro vs Heihachi | 20–19 | 51.28% |
| Pietro vs Eddy | 20–16 | 55.56% |
| Pietro vs Victor | 19–12 | 61.29% |
| Pietro vs Lee | 12–18 | 40.00% |
| Pietro vs Fahkumram | 16–14 | 53.33% |
| Pietro vs Paul | 12–15 | 44.44% |
| Pietro vs Anna | 13–13 | 50.00% |
| Pietro vs Devil Jin | 10–15 | 40.00% |
| Pietro vs Feng | 13–12 | 52.00% |
| Pietro vs Lars | 10–12 | 45.45% |
| Pietro vs Leroy | 11–11 | 50.00% |
| Pietro vs Alisa | 12–8 | 60.00% |
| Pietro vs Nina | 8–12 | 40.00% |
| Pietro vs Azucena | 7–13 | 35.00% |
| Pietro vs Miary Zo | 8–12 | 40.00% |
| Pietro vs Clive | 11–7 | 61.11% |
| Pietro vs Asuka | 12–4 | 75.00% |
| Pietro vs Raven | 9–5 | 64.29% |
| Pietro vs Xiaoyu | 11–2 | 84.62% |
| Pietro vs Leo | 4–7 | 36.36% |
| Pietro vs Zafina | 6–5 | 54.55% |
| Pietro vs Kuma | 3–7 | 30.00% |
| Pietro vs Lidia | 6–3 | 66.67% |
| Pietro vs Claudio | 5–3 | 62.50% |
| Pietro vs Shaheen | 4–2 | 66.67% |
| Pietro vs Jack-8 | 2–2 | 50.00% |
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.