| Piers vs Kazuya | 9–3 | 75.00% |
| Piers vs Devil Jin | 9–2 | 81.82% |
| Piers vs King | 9–1 | 90.00% |
| Piers vs Asuka | 9–1 | 90.00% |
| Piers vs Victor | 6–4 | 60.00% |
| Piers vs Clive | 7–3 | 70.00% |
| Piers vs Steve | 9–0 | 100.00% |
| Piers vs Hwoarang | 8–0 | 100.00% |
| Piers vs Jin | 6–2 | 75.00% |
| Piers vs Law | 2–5 | 28.57% |
| Piers vs Jun | 6–1 | 85.71% |
| Piers vs Eddy | 6–0 | 100.00% |
| Piers vs Reina | 1–4 | 20.00% |
| Piers vs Yoshimitsu | 4–0 | 100.00% |
| Piers vs Azucena | 3–1 | 75.00% |
| Piers vs Lidia | 4–0 | 100.00% |
| Piers vs Heihachi | 2–2 | 50.00% |
| Piers vs Paul | 3–0 | 100.00% |
| Piers vs Dragunov | 3–0 | 100.00% |
| Piers vs Nina | 3–0 | 100.00% |
| Piers vs Zafina | 2–0 | 100.00% |
| Piers vs Leroy | 2–0 | 100.00% |
| Piers vs Raven | 2–0 | 100.00% |
| Piers vs Anna | 2–0 | 100.00% |
| Piers vs Leo | 1–0 | 100.00% |
| Piers vs Lars | 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.