| Peko vs Hwoarang | 9–2 | 81.82% |
| Peko vs Jin | 8–3 | 72.73% |
| Peko vs Dragunov | 8–3 | 72.73% |
| Peko vs King | 8–1 | 88.89% |
| Peko vs Armor King | 8–1 | 88.89% |
| Peko vs Heihachi | 6–2 | 75.00% |
| Peko vs Law | 5–2 | 71.43% |
| Peko vs Kazuya | 7–0 | 100.00% |
| Peko vs Paul | 5–1 | 83.33% |
| Peko vs Steve | 4–2 | 66.67% |
| Peko vs Jack-8 | 6–0 | 100.00% |
| Peko vs Lars | 5–1 | 83.33% |
| Peko vs Victor | 6–0 | 100.00% |
| Peko vs Yoshimitsu | 1–4 | 20.00% |
| Peko vs Lee | 4–1 | 80.00% |
| Peko vs Asuka | 4–0 | 100.00% |
| Peko vs Nina | 3–1 | 75.00% |
| Peko vs Reina | 2–2 | 50.00% |
| Peko vs Raven | 3–1 | 75.00% |
| Peko vs Kuma | 2–1 | 66.67% |
| Peko vs Azucena | 3–0 | 100.00% |
| Peko vs Fahkumram | 3–0 | 100.00% |
| Peko vs Xiaoyu | 1–1 | 50.00% |
| Peko vs Bryan | 2–0 | 100.00% |
| Peko vs Devil Jin | 2–0 | 100.00% |
| Peko vs Leo | 2–0 | 100.00% |
| Peko vs Eddy | 1–1 | 50.00% |
| Peko vs Anna | 2–0 | 100.00% |
| Peko vs Miary Zo | 2–0 | 100.00% |
| Peko vs Lili | 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.