| Medium Peperoni vs Kazuya | 86–70 | 55.13% |
| Medium Peperoni vs Reina | 88–45 | 66.17% |
| Medium Peperoni vs Bryan | 53–65 | 44.92% |
| Medium Peperoni vs King | 55–54 | 50.46% |
| Medium Peperoni vs Jin | 45–60 | 42.86% |
| Medium Peperoni vs Steve | 40–41 | 49.38% |
| Medium Peperoni vs Paul | 34–42 | 44.74% |
| Medium Peperoni vs Dragunov | 28–48 | 36.84% |
| Medium Peperoni vs Eddy | 22–48 | 31.43% |
| Medium Peperoni vs Hwoarang | 35–30 | 53.85% |
| Medium Peperoni vs Lili | 32–27 | 54.24% |
| Medium Peperoni vs Lee | 35–24 | 59.32% |
| Medium Peperoni vs Jun | 28–25 | 52.83% |
| Medium Peperoni vs Devil Jin | 27–23 | 54.00% |
| Medium Peperoni vs Law | 21–26 | 44.68% |
| Medium Peperoni vs Asuka | 22–25 | 46.81% |
| Medium Peperoni vs Lars | 15–28 | 34.88% |
| Medium Peperoni vs Feng | 21–20 | 51.22% |
| Medium Peperoni vs Nina | 25–16 | 60.98% |
| Medium Peperoni vs Leroy | 21–12 | 63.64% |
| Medium Peperoni vs Claudio | 14–18 | 43.75% |
| Medium Peperoni vs Xiaoyu | 21–10 | 67.74% |
| Medium Peperoni vs Leo | 17–14 | 54.84% |
| Medium Peperoni vs Alisa | 11–19 | 36.67% |
| Medium Peperoni vs Lidia | 17–13 | 56.67% |
| Medium Peperoni vs Yoshimitsu | 17–11 | 60.71% |
| Medium Peperoni vs Victor | 13–11 | 54.17% |
| Medium Peperoni vs Zafina | 9–14 | 39.13% |
| Medium Peperoni vs Shaheen | 10–12 | 45.45% |
| Medium Peperoni vs Azucena | 13–9 | 59.09% |
| Medium Peperoni vs Raven | 10–12 | 45.45% |
| Medium Peperoni vs Jack-8 | 12–8 | 60.00% |
| Medium Peperoni vs Kuma | 6–5 | 54.55% |
| Medium Peperoni vs Panda | 6–4 | 60.00% |
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.