| Grzegorz vs Steve | 10–10 | 50.00% |
| Grzegorz vs Jin | 4–14 | 22.22% |
| Grzegorz vs King | 5–10 | 33.33% |
| Grzegorz vs Reina | 5–10 | 33.33% |
| Grzegorz vs Anna | 6–7 | 46.15% |
| Grzegorz vs Hwoarang | 5–7 | 41.67% |
| Grzegorz vs Eddy | 0–11 | 0.00% |
| Grzegorz vs Kazuya | 6–4 | 60.00% |
| Grzegorz vs Heihachi | 6–4 | 60.00% |
| Grzegorz vs Yoshimitsu | 3–6 | 33.33% |
| Grzegorz vs Dragunov | 5–4 | 55.56% |
| Grzegorz vs Clive | 1–8 | 11.11% |
| Grzegorz vs Law | 6–2 | 75.00% |
| Grzegorz vs Nina | 5–2 | 71.43% |
| Grzegorz vs Asuka | 2–4 | 33.33% |
| Grzegorz vs Shaheen | 1–5 | 16.67% |
| Grzegorz vs Lee | 1–5 | 16.67% |
| Grzegorz vs Bryan | 2–3 | 40.00% |
| Grzegorz vs Feng | 2–2 | 50.00% |
| Grzegorz vs Devil Jin | 1–2 | 33.33% |
| Grzegorz vs Zafina | 1–2 | 33.33% |
| Grzegorz vs Leroy | 1–2 | 33.33% |
| Grzegorz vs Jun | 0–3 | 0.00% |
| Grzegorz vs Victor | 0–3 | 0.00% |
| Grzegorz vs Paul | 0–2 | 0.00% |
| Grzegorz vs Xiaoyu | 1–1 | 50.00% |
| Grzegorz vs Lili | 0–2 | 0.00% |
| Grzegorz vs Alisa | 0–2 | 0.00% |
| Grzegorz vs Claudio | 2–0 | 100.00% |
| Grzegorz vs Azucena | 2–0 | 100.00% |
| Grzegorz vs Lars | 0–1 | 0.00% |
| Grzegorz vs Raven | 0–1 | 0.00% |
| Grzegorz vs Lidia | 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.