| Grzegorz vs Jin | 46–49 | 48.42% |
| Grzegorz vs King | 26–50 | 34.21% |
| Grzegorz vs Law | 27–46 | 36.99% |
| Grzegorz vs Steve | 25–43 | 36.76% |
| Grzegorz vs Hwoarang | 23–42 | 35.38% |
| Grzegorz vs Kazuya | 19–39 | 32.76% |
| Grzegorz vs Eddy | 20–33 | 37.74% |
| Grzegorz vs Armor King | 17–36 | 32.08% |
| Grzegorz vs Bryan | 15–36 | 29.41% |
| Grzegorz vs Reina | 16–28 | 36.36% |
| Grzegorz vs Miary Zo | 16–28 | 36.36% |
| Grzegorz vs Lili | 10–32 | 23.81% |
| Grzegorz vs Jun | 20–22 | 47.62% |
| Grzegorz vs Heihachi | 11–28 | 28.21% |
| Grzegorz vs Paul | 15–22 | 40.54% |
| Grzegorz vs Asuka | 17–19 | 47.22% |
| Grzegorz vs Dragunov | 11–25 | 30.56% |
| Grzegorz vs Fahkumram | 12–22 | 35.29% |
| Grzegorz vs Clive | 14–17 | 45.16% |
| Grzegorz vs Devil Jin | 6–22 | 21.43% |
| Grzegorz vs Nina | 13–14 | 48.15% |
| Grzegorz vs Feng | 15–11 | 57.69% |
| Grzegorz vs Victor | 8–17 | 32.00% |
| Grzegorz vs Azucena | 12–12 | 50.00% |
| Grzegorz vs Lee | 9–14 | 39.13% |
| Grzegorz vs Xiaoyu | 12–8 | 60.00% |
| Grzegorz vs Yoshimitsu | 10–8 | 55.56% |
| Grzegorz vs Lars | 4–14 | 22.22% |
| Grzegorz vs Anna | 3–15 | 16.67% |
| Grzegorz vs Alisa | 6–9 | 40.00% |
| Grzegorz vs Claudio | 6–8 | 42.86% |
| Grzegorz vs Jack-8 | 4–8 | 33.33% |
| Grzegorz vs Lidia | 5–3 | 62.50% |
| Grzegorz vs Raven | 2–4 | 33.33% |
| Grzegorz vs Leo | 2–2 | 50.00% |
| Grzegorz vs Zafina | 0–4 | 0.00% |
| Grzegorz vs Leroy | 2–2 | 50.00% |
| Grzegorz vs Shaheen | 0–3 | 0.00% |
| Grzegorz vs Panda | 2–1 | 66.67% |
| Grzegorz vs Kuma | 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.