| Groisu vs King | 20–5 | 80.00% |
| Groisu vs Eddy | 19–5 | 79.17% |
| Groisu vs Law | 11–9 | 55.00% |
| Groisu vs Kazuya | 14–6 | 70.00% |
| Groisu vs Steve | 16–3–1 | 84.21% |
| Groisu vs Jin | 12–7 | 63.16% |
| Groisu vs Dragunov | 10–7 | 58.82% |
| Groisu vs Reina | 10–6 | 62.50% |
| Groisu vs Yoshimitsu | 7–8 | 46.67% |
| Groisu vs Hwoarang | 13–2 | 86.67% |
| Groisu vs Victor | 6–6 | 50.00% |
| Groisu vs Bryan | 7–3 | 70.00% |
| Groisu vs Jun | 6–4 | 60.00% |
| Groisu vs Asuka | 7–2 | 77.78% |
| Groisu vs Feng | 5–4 | 55.56% |
| Groisu vs Devil Jin | 5–3 | 62.50% |
| Groisu vs Lars | 5–3 | 62.50% |
| Groisu vs Lee | 7–1 | 87.50% |
| Groisu vs Raven | 7–0 | 100.00% |
| Groisu vs Paul | 6–0 | 100.00% |
| Groisu vs Nina | 6–0 | 100.00% |
| Groisu vs Azucena | 2–4 | 33.33% |
| Groisu vs Jack-8 | 3–2 | 60.00% |
| Groisu vs Lili | 4–1 | 80.00% |
| Groisu vs Leo | 1–4 | 20.00% |
| Groisu vs Xiaoyu | 3–1 | 75.00% |
| Groisu vs Claudio | 2–2 | 50.00% |
| Groisu vs Alisa | 3–0 | 100.00% |
| Groisu vs Shaheen | 2–0 | 100.00% |
| Groisu vs Leroy | 0–2 | 0.00% |
| Groisu 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.