| Piquirtle vs Clive | 7–8 | 46.67% |
| Piquirtle vs Eddy | 9–4 | 69.23% |
| Piquirtle vs Hwoarang | 5–7 | 41.67% |
| Piquirtle vs Law | 6–4 | 60.00% |
| Piquirtle vs Bryan | 4–5 | 44.44% |
| Piquirtle vs Dragunov | 3–6 | 33.33% |
| Piquirtle vs Jin | 5–3 | 62.50% |
| Piquirtle vs Kazuya | 3–4 | 42.86% |
| Piquirtle vs King | 4–2 | 66.67% |
| Piquirtle vs Xiaoyu | 4–2 | 66.67% |
| Piquirtle vs Steve | 2–4 | 33.33% |
| Piquirtle vs Lars | 2–4 | 33.33% |
| Piquirtle vs Nina | 4–2 | 66.67% |
| Piquirtle vs Claudio | 4–1 | 80.00% |
| Piquirtle vs Kuma | 2–2 | 50.00% |
| Piquirtle vs Victor | 3–1 | 75.00% |
| Piquirtle vs Lili | 3–0 | 100.00% |
| Piquirtle vs Alisa | 2–1 | 66.67% |
| Piquirtle vs Jun | 1–2 | 33.33% |
| Piquirtle vs Yoshimitsu | 2–0 | 100.00% |
| Piquirtle vs Heihachi | 2–0 | 100.00% |
| Piquirtle vs Paul | 1–1 | 50.00% |
| Piquirtle vs Asuka | 0–2 | 0.00% |
| Piquirtle vs Feng | 2–0 | 100.00% |
| Piquirtle vs Zafina | 2–0 | 100.00% |
| Piquirtle vs Reina | 2–0 | 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.