| Grzegorz Wampir vs Eddy | 5–27 | 15.62% |
| Grzegorz Wampir vs Hwoarang | 1–15 | 6.25% |
| Grzegorz Wampir vs Jin | 4–11 | 26.67% |
| Grzegorz Wampir vs Lee | 7–8 | 46.67% |
| Grzegorz Wampir vs Lili | 3–11 | 21.43% |
| Grzegorz Wampir vs Reina | 3–10 | 23.08% |
| Grzegorz Wampir vs Azucena | 3–10 | 23.08% |
| Grzegorz Wampir vs Steve | 3–7 | 30.00% |
| Grzegorz Wampir vs King | 1–6 | 14.29% |
| Grzegorz Wampir vs Victor | 1–6 | 14.29% |
| Grzegorz Wampir vs Yoshimitsu | 1–5 | 16.67% |
| Grzegorz Wampir vs Xiaoyu | 3–1 | 75.00% |
| Grzegorz Wampir vs Feng | 0–4 | 0.00% |
| Grzegorz Wampir vs Zafina | 0–4 | 0.00% |
| Grzegorz Wampir vs Alisa | 1–3 | 25.00% |
| Grzegorz Wampir vs Paul | 0–3 | 0.00% |
| Grzegorz Wampir vs Law | 1–2 | 33.33% |
| Grzegorz Wampir vs Bryan | 0–3 | 0.00% |
| Grzegorz Wampir vs Jun | 1–2 | 33.33% |
| Grzegorz Wampir vs Jack-8 | 0–2 | 0.00% |
| Grzegorz Wampir vs Asuka | 0–2 | 0.00% |
| Grzegorz Wampir vs Kuma | 0–2 | 0.00% |
| Grzegorz Wampir vs Devil Jin | 1–0 | 100.00% |
| Grzegorz Wampir vs Dragunov | 0–1 | 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.