| Peperoni vs King | 7–7 | 50.00% |
| Peperoni vs Law | 4–8 | 33.33% |
| Peperoni vs Bryan | 4–6 | 40.00% |
| Peperoni vs Steve | 6–4 | 60.00% |
| Peperoni vs Anna | 4–6 | 40.00% |
| Peperoni vs Kazuya | 5–4 | 55.56% |
| Peperoni vs Lidia | 5–3 | 62.50% |
| Peperoni vs Clive | 4–4 | 50.00% |
| Peperoni vs Lee | 4–2 | 66.67% |
| Peperoni vs Leroy | 4–2 | 66.67% |
| Peperoni vs Eddy | 1–5 | 16.67% |
| Peperoni vs Jin | 2–3 | 40.00% |
| Peperoni vs Asuka | 4–1 | 80.00% |
| Peperoni vs Nina | 2–3 | 40.00% |
| Peperoni vs Reina | 1–4 | 20.00% |
| Peperoni vs Hwoarang | 1–3 | 25.00% |
| Peperoni vs Dragunov | 1–3 | 25.00% |
| Peperoni vs Heihachi | 0–4 | 0.00% |
| Peperoni vs Paul | 3–0 | 100.00% |
| Peperoni vs Leo | 1–2 | 33.33% |
| Peperoni vs Alisa | 0–3 | 0.00% |
| Peperoni vs Azucena | 2–1 | 66.67% |
| Peperoni vs Jack-8 | 0–2 | 0.00% |
| Peperoni vs Claudio | 0–2 | 0.00% |
| Peperoni vs Kuma | 0–2 | 0.00% |
| Peperoni vs Raven | 2–0 | 100.00% |
| Peperoni vs Yoshimitsu | 0–1 | 0.00% |
| Peperoni vs Xiaoyu | 0–1 | 0.00% |
| Peperoni vs Lars | 0–1 | 0.00% |
| Peperoni vs Fahkumram | 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.