| Grumyum vs Kazuya | 138–129 | 51.69% |
| Grumyum vs Jin | 117–98 | 54.42% |
| Grumyum vs Reina | 108–91 | 54.27% |
| Grumyum vs Heihachi | 79–104 | 43.17% |
| Grumyum vs Bryan | 79–93 | 45.93% |
| Grumyum vs King | 80–76 | 51.28% |
| Grumyum vs Dragunov | 61–72 | 45.86% |
| Grumyum vs Paul | 59–73 | 44.70% |
| Grumyum vs Steve | 65–66–1 | 49.62% |
| Grumyum vs Lidia | 71–45 | 61.21% |
| Grumyum vs Lee | 48–59 | 44.86% |
| Grumyum vs Lili | 44–62 | 41.51% |
| Grumyum vs Azucena | 39–53 | 42.39% |
| Grumyum vs Law | 30–61 | 32.97% |
| Grumyum vs Devil Jin | 49–42 | 53.85% |
| Grumyum vs Hwoarang | 41–49 | 45.56% |
| Grumyum vs Asuka | 38–49 | 43.68% |
| Grumyum vs Jun | 39–42 | 48.15% |
| Grumyum vs Yoshimitsu | 33–43 | 43.42% |
| Grumyum vs Victor | 40–30 | 57.14% |
| Grumyum vs Eddy | 27–43 | 38.57% |
| Grumyum vs Leo | 39–30 | 56.52% |
| Grumyum vs Lars | 28–39 | 41.79% |
| Grumyum vs Nina | 29–31 | 48.33% |
| Grumyum vs Claudio | 24–31 | 43.64% |
| Grumyum vs Xiaoyu | 24–30 | 44.44% |
| Grumyum vs Raven | 30–24 | 55.56% |
| Grumyum vs Feng | 29–21 | 58.00% |
| Grumyum vs Jack-8 | 19–30 | 38.78% |
| Grumyum vs Shaheen | 16–29 | 35.56% |
| Grumyum vs Leroy | 17–22 | 43.59% |
| Grumyum vs Clive | 18–19 | 48.65% |
| Grumyum vs Kuma | 17–18 | 48.57% |
| Grumyum vs Alisa | 14–20 | 41.18% |
| Grumyum vs Zafina | 17–12 | 58.62% |
| Grumyum vs Armor King | 18–10 | 64.29% |
| Grumyum vs Anna | 11–7 | 61.11% |
| Grumyum vs Panda | 8–4 | 66.67% |
| Grumyum vs Fahkumram | 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.