| Grimace vs Kazuya | 110–68 | 61.80% |
| Grimace vs Bryan | 83–90 | 47.98% |
| Grimace vs Jin | 86–83 | 50.89% |
| Grimace vs King | 68–79 | 46.26% |
| Grimace vs Steve | 69–72 | 48.94% |
| Grimace vs Hwoarang | 65–67 | 49.24% |
| Grimace vs Lili | 67–56 | 54.47% |
| Grimace vs Paul | 46–56 | 45.10% |
| Grimace vs Law | 47–47 | 50.00% |
| Grimace vs Devil Jin | 35–56 | 38.46% |
| Grimace vs Dragunov | 46–40 | 53.49% |
| Grimace vs Azucena | 32–47 | 40.51% |
| Grimace vs Jack-8 | 30–45 | 40.00% |
| Grimace vs Lee | 30–44 | 40.54% |
| Grimace vs Reina | 43–26 | 62.32% |
| Grimace vs Yoshimitsu | 36–31 | 53.73% |
| Grimace vs Lars | 28–35 | 44.44% |
| Grimace vs Alisa | 17–46 | 26.98% |
| Grimace vs Asuka | 30–31 | 49.18% |
| Grimace vs Jun | 32–29 | 52.46% |
| Grimace vs Nina | 30–28 | 51.72% |
| Grimace vs Victor | 32–26 | 55.17% |
| Grimace vs Xiaoyu | 19–38 | 33.33% |
| Grimace vs Eddy | 20–36 | 35.71% |
| Grimace vs Feng | 18–24 | 42.86% |
| Grimace vs Leo | 22–20 | 52.38% |
| Grimace vs Claudio | 18–20 | 47.37% |
| Grimace vs Leroy | 16–17 | 48.48% |
| Grimace vs Heihachi | 16–13 | 55.17% |
| Grimace vs Raven | 12–14 | 46.15% |
| Grimace vs Kuma | 15–9 | 62.50% |
| Grimace vs Zafina | 8–13 | 38.10% |
| Grimace vs Panda | 6–11 | 35.29% |
| Grimace vs Lidia | 6–10 | 37.50% |
| Grimace vs Clive | 4–12 | 25.00% |
| Grimace vs Shaheen | 4–11 | 26.67% |
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.