| Grooren vs Jin | 70–34 | 67.31% |
| Grooren vs Hwoarang | 55–37 | 59.78% |
| Grooren vs King | 53–25 | 67.95% |
| Grooren vs Devil Jin | 48–30 | 61.54% |
| Grooren vs Law | 47–30 | 61.04% |
| Grooren vs Paul | 47–26 | 64.38% |
| Grooren vs Reina | 38–34 | 52.78% |
| Grooren vs Dragunov | 47–20 | 70.15% |
| Grooren vs Yoshimitsu | 46–20 | 69.70% |
| Grooren vs Kazuya | 48–15 | 76.19% |
| Grooren vs Heihachi | 44–18 | 70.97% |
| Grooren vs Bryan | 42–19 | 68.85% |
| Grooren vs Steve | 45–16 | 73.77% |
| Grooren vs Lars | 33–22 | 60.00% |
| Grooren vs Nina | 35–14 | 71.43% |
| Grooren vs Lee | 34–13 | 72.34% |
| Grooren vs Lidia | 29–16 | 64.44% |
| Grooren vs Alisa | 32–12 | 72.73% |
| Grooren vs Azucena | 30–12 | 71.43% |
| Grooren vs Victor | 28–14 | 66.67% |
| Grooren vs Lili | 28–13 | 68.29% |
| Grooren vs Asuka | 23–14 | 62.16% |
| Grooren vs Feng | 20–17 | 54.05% |
| Grooren vs Leroy | 27–10 | 72.97% |
| Grooren vs Jack-8 | 23–11 | 67.65% |
| Grooren vs Xiaoyu | 28–3 | 90.32% |
| Grooren vs Eddy | 24–7 | 77.42% |
| Grooren vs Jun | 21–9 | 70.00% |
| Grooren vs Zafina | 20–5 | 80.00% |
| Grooren vs Claudio | 11–12 | 47.83% |
| Grooren vs Raven | 16–5 | 76.19% |
| Grooren vs Shaheen | 16–2 | 88.89% |
| Grooren vs Leo | 14–3 | 82.35% |
| Grooren vs Anna | 7–6 | 53.85% |
| Grooren vs Kuma | 9–2 | 81.82% |
| Grooren vs Clive | 7–3 | 70.00% |
| Grooren vs Armor King | 3–3 | 50.00% |
| Grooren vs Panda | 3–2 | 60.00% |
| Grooren vs Fahkumram | 1–1 | 50.00% |
| Grooren vs Miary Zo | 2–0 | 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.