| Grum vs Kazuya | 140–208 | 40.23% |
| Grum vs Jin | 135–175–1 | 43.55% |
| Grum vs King | 107–118 | 47.56% |
| Grum vs Reina | 92–118 | 43.81% |
| Grum vs Hwoarang | 88–94 | 48.35% |
| Grum vs Steve | 78–101 | 43.58% |
| Grum vs Heihachi | 67–112 | 37.43% |
| Grum vs Bryan | 78–86 | 47.56% |
| Grum vs Law | 71–87 | 44.94% |
| Grum vs Lili | 55–88 | 38.46% |
| Grum vs Eddy | 49–88 | 35.77% |
| Grum vs Yoshimitsu | 61–64 | 48.80% |
| Grum vs Jun | 59–59 | 50.00% |
| Grum vs Paul | 44–70 | 38.60% |
| Grum vs Dragunov | 50–61 | 45.05% |
| Grum vs Azucena | 56–54 | 50.91% |
| Grum vs Lidia | 58–48 | 54.72% |
| Grum vs Lee | 44–61 | 41.90% |
| Grum vs Devil Jin | 32–68 | 32.00% |
| Grum vs Nina | 44–46 | 48.89% |
| Grum vs Feng | 25–52 | 32.47% |
| Grum vs Victor | 34–41 | 45.33% |
| Grum vs Xiaoyu | 32–42 | 43.24% |
| Grum vs Asuka | 38–36 | 51.35% |
| Grum vs Alisa | 33–38 | 46.48% |
| Grum vs Jack-8 | 22–40 | 35.48% |
| Grum vs Clive | 27–33 | 45.00% |
| Grum vs Lars | 20–38 | 34.48% |
| Grum vs Anna | 27–23 | 54.00% |
| Grum vs Raven | 13–28 | 31.71% |
| Grum vs Kuma | 16–24 | 40.00% |
| Grum vs Claudio | 22–17 | 56.41% |
| Grum vs Leo | 15–21 | 41.67% |
| Grum vs Zafina | 14–21 | 40.00% |
| Grum vs Armor King | 14–19 | 42.42% |
| Grum vs Leroy | 13–17 | 43.33% |
| Grum vs Shaheen | 12–12 | 50.00% |
| Grum vs Fahkumram | 9–11 | 45.00% |
| Grum vs Miary Zo | 4–15 | 21.05% |
| Grum vs Panda | 3–7 | 30.00% |
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.