| Piikej vs Yoshimitsu | 10–1 | 90.91% |
| Piikej vs Law | 6–4 | 60.00% |
| Piikej vs Lee | 1–9 | 10.00% |
| Piikej vs Hwoarang | 1–7 | 12.50% |
| Piikej vs Steve | 4–3 | 57.14% |
| Piikej vs Paul | 1–5 | 16.67% |
| Piikej vs Asuka | 2–4 | 33.33% |
| Piikej vs Jun | 5–1 | 83.33% |
| Piikej vs Reina | 4–2 | 66.67% |
| Piikej vs Eddy | 1–5 | 16.67% |
| Piikej vs Lidia | 5–0 | 100.00% |
| Piikej vs Kazuya | 3–1 | 75.00% |
| Piikej vs Dragunov | 1–3 | 25.00% |
| Piikej vs Azucena | 1–3 | 25.00% |
| Piikej vs Devil Jin | 0–3 | 0.00% |
| Piikej vs Nina | 1–2 | 33.33% |
| Piikej vs Victor | 0–3 | 0.00% |
| Piikej vs Heihachi | 2–1 | 66.67% |
| Piikej vs King | 1–1 | 50.00% |
| Piikej vs Jin | 2–0 | 100.00% |
| Piikej vs Bryan | 0–2 | 0.00% |
| Piikej vs Lars | 2–0 | 100.00% |
| Piikej vs Claudio | 2–0 | 100.00% |
| Piikej vs Shaheen | 0–2 | 0.00% |
| Piikej vs Leroy | 1–1 | 50.00% |
| Piikej vs Anna | 0–2 | 0.00% |
| Piikej vs Jack-8 | 0–1 | 0.00% |
| Piikej vs Feng | 0–1 | 0.00% |
| Piikej vs Lili | 0–1 | 0.00% |
| Piikej vs Raven | 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.