| Piona vs King | 66–57 | 53.66% |
| Piona vs Jin | 56–36 | 60.87% |
| Piona vs Kazuya | 44–43 | 50.57% |
| Piona vs Bryan | 45–41 | 52.33% |
| Piona vs Dragunov | 43–35 | 55.13% |
| Piona vs Steve | 46–31 | 59.74% |
| Piona vs Law | 29–42 | 40.85% |
| Piona vs Reina | 42–25 | 62.69% |
| Piona vs Lars | 32–32 | 50.00% |
| Piona vs Asuka | 34–26 | 56.67% |
| Piona vs Paul | 35–23 | 60.34% |
| Piona vs Eddy | 26–30 | 46.43% |
| Piona vs Lili | 32–23 | 58.18% |
| Piona vs Hwoarang | 30–23 | 56.60% |
| Piona vs Yoshimitsu | 16–30–3 | 34.78% |
| Piona vs Jun | 25–23 | 52.08% |
| Piona vs Azucena | 27–21 | 56.25% |
| Piona vs Alisa | 18–28 | 39.13% |
| Piona vs Victor | 21–24 | 46.67% |
| Piona vs Devil Jin | 19–19 | 50.00% |
| Piona vs Feng | 23–13 | 63.89% |
| Piona vs Heihachi | 15–20 | 42.86% |
| Piona vs Xiaoyu | 21–12 | 63.64% |
| Piona vs Jack-8 | 11–19 | 36.67% |
| Piona vs Nina | 18–12 | 60.00% |
| Piona vs Lee | 13–17 | 43.33% |
| Piona vs Leo | 15–8 | 65.22% |
| Piona vs Claudio | 10–13 | 43.48% |
| Piona vs Shaheen | 13–9 | 59.09% |
| Piona vs Kuma | 5–15 | 25.00% |
| Piona vs Raven | 7–12 | 36.84% |
| Piona vs Leroy | 9–7 | 56.25% |
| Piona vs Zafina | 10–4 | 71.43% |
| Piona vs Lidia | 5–8 | 38.46% |
| Piona vs Anna | 2–7 | 22.22% |
| Piona vs Armor King | 3–6 | 33.33% |
| Piona vs Panda | 2–4 | 33.33% |
| Piona vs Clive | 0–2 | 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.