| Grimlock vs Eddy | 10–15 | 40.00% |
| Grimlock vs King | 11–13 | 45.83% |
| Grimlock vs Jin | 9–11 | 45.00% |
| Grimlock vs Steve | 4–14 | 22.22% |
| Grimlock vs Yoshimitsu | 9–6 | 60.00% |
| Grimlock vs Hwoarang | 6–9 | 40.00% |
| Grimlock vs Nina | 6–7 | 46.15% |
| Grimlock vs Reina | 10–3 | 76.92% |
| Grimlock vs Xiaoyu | 5–6 | 45.45% |
| Grimlock vs Bryan | 4–7 | 36.36% |
| Grimlock vs Lili | 5–6 | 45.45% |
| Grimlock vs Alisa | 4–7 | 36.36% |
| Grimlock vs Paul | 3–7 | 30.00% |
| Grimlock vs Kazuya | 2–8 | 20.00% |
| Grimlock vs Dragunov | 5–5 | 50.00% |
| Grimlock vs Jun | 4–6 | 40.00% |
| Grimlock vs Lars | 6–3 | 66.67% |
| Grimlock vs Azucena | 5–4 | 55.56% |
| Grimlock vs Devil Jin | 5–3 | 62.50% |
| Grimlock vs Leo | 3–4 | 42.86% |
| Grimlock vs Zafina | 3–4 | 42.86% |
| Grimlock vs Victor | 3–3 | 50.00% |
| Grimlock vs Claudio | 2–3 | 40.00% |
| Grimlock vs Feng | 1–3 | 25.00% |
| Grimlock vs Lee | 2–2 | 50.00% |
| Grimlock vs Shaheen | 2–1 | 66.67% |
| Grimlock vs Law | 1–1 | 50.00% |
| Grimlock vs Asuka | 1–1 | 50.00% |
| Grimlock vs Leroy | 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.