| Groszeub vs Kazuya | 19–6 | 76.00% |
| Groszeub vs Bryan | 10–9 | 52.63% |
| Groszeub vs Steve | 9–10 | 47.37% |
| Groszeub vs Hwoarang | 14–1 | 93.33% |
| Groszeub vs Law | 6–8 | 42.86% |
| Groszeub vs King | 7–7 | 50.00% |
| Groszeub vs Jin | 11–2 | 84.62% |
| Groszeub vs Lidia | 12–1 | 92.31% |
| Groszeub vs Devil Jin | 6–6 | 50.00% |
| Groszeub vs Dragunov | 9–3 | 75.00% |
| Groszeub vs Eddy | 5–6 | 45.45% |
| Groszeub vs Alisa | 2–8 | 20.00% |
| Groszeub vs Paul | 3–6 | 33.33% |
| Groszeub vs Reina | 3–6 | 33.33% |
| Groszeub vs Feng | 6–1 | 85.71% |
| Groszeub vs Lee | 1–6 | 14.29% |
| Groszeub vs Azucena | 4–3 | 57.14% |
| Groszeub vs Victor | 6–0 | 100.00% |
| Groszeub vs Xiaoyu | 4–1 | 80.00% |
| Groszeub vs Yoshimitsu | 3–1 | 75.00% |
| Groszeub vs Leo | 1–3 | 25.00% |
| Groszeub vs Nina | 4–0 | 100.00% |
| Groszeub vs Leroy | 1–3 | 25.00% |
| Groszeub vs Raven | 1–3 | 25.00% |
| Groszeub vs Asuka | 2–1 | 66.67% |
| Groszeub vs Shaheen | 2–1 | 66.67% |
| Groszeub vs Jun | 1–2 | 33.33% |
| Groszeub vs Lili | 0–2 | 0.00% |
| Groszeub vs Lars | 0–2 | 0.00% |
| Groszeub vs Jack-8 | 0–1 | 0.00% |
| Groszeub vs Panda | 0–1 | 0.00% |
| Groszeub vs Zafina | 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.