| Piwi vs King | 31–27 | 53.45% |
| Piwi vs Jin | 15–28 | 34.88% |
| Piwi vs Steve | 16–20 | 44.44% |
| Piwi vs Asuka | 16–14 | 53.33% |
| Piwi vs Eddy | 9–20 | 31.03% |
| Piwi vs Hwoarang | 16–12 | 57.14% |
| Piwi vs Reina | 12–14 | 46.15% |
| Piwi vs Law | 13–10 | 56.52% |
| Piwi vs Clive | 9–14 | 39.13% |
| Piwi vs Armor King | 12–11 | 52.17% |
| Piwi vs Kazuya | 8–12 | 40.00% |
| Piwi vs Bryan | 9–10 | 47.37% |
| Piwi vs Paul | 7–10 | 41.18% |
| Piwi vs Jun | 6–11 | 35.29% |
| Piwi vs Azucena | 8–6 | 57.14% |
| Piwi vs Miary Zo | 6–7 | 46.15% |
| Piwi vs Lidia | 6–6 | 50.00% |
| Piwi vs Yoshimitsu | 5–6 | 45.45% |
| Piwi vs Lili | 3–8 | 27.27% |
| Piwi vs Lee | 3–7 | 30.00% |
| Piwi vs Victor | 6–4 | 60.00% |
| Piwi vs Lars | 2–7 | 22.22% |
| Piwi vs Alisa | 4–5 | 44.44% |
| Piwi vs Heihachi | 5–4 | 55.56% |
| Piwi vs Devil Jin | 5–3 | 62.50% |
| Piwi vs Dragunov | 1–7 | 12.50% |
| Piwi vs Claudio | 3–5 | 37.50% |
| Piwi vs Leroy | 6–2 | 75.00% |
| Piwi vs Kuma | 1–6 | 14.29% |
| Piwi vs Feng | 1–5 | 16.67% |
| Piwi vs Shaheen | 1–5 | 16.67% |
| Piwi vs Nina | 3–3 | 50.00% |
| Piwi vs Fahkumram | 2–4 | 33.33% |
| Piwi vs Jack-8 | 0–5 | 0.00% |
| Piwi vs Raven | 1–4 | 20.00% |
| Piwi vs Xiaoyu | 0–4 | 0.00% |
| Piwi vs Zafina | 2–2 | 50.00% |
| Piwi vs Anna | 1–3 | 25.00% |
| Piwi vs Leo | 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.