| Grumpy vs Bryan | 24–20 | 54.55% |
| Grumpy vs Kazuya | 23–18 | 56.10% |
| Grumpy vs King | 19–19 | 50.00% |
| Grumpy vs Steve | 22–9 | 70.97% |
| Grumpy vs Asuka | 16–13 | 55.17% |
| Grumpy vs Fahkumram | 12–15 | 44.44% |
| Grumpy vs Dragunov | 13–12 | 52.00% |
| Grumpy vs Heihachi | 16–9 | 64.00% |
| Grumpy vs Armor King | 12–12 | 50.00% |
| Grumpy vs Jin | 14–9 | 60.87% |
| Grumpy vs Reina | 11–12 | 47.83% |
| Grumpy vs Lili | 10–11 | 47.62% |
| Grumpy vs Lee | 9–12 | 42.86% |
| Grumpy vs Miary Zo | 6–14 | 30.00% |
| Grumpy vs Eddy | 9–10 | 47.37% |
| Grumpy vs Hwoarang | 9–9 | 50.00% |
| Grumpy vs Paul | 13–4 | 76.47% |
| Grumpy vs Devil Jin | 4–13 | 23.53% |
| Grumpy vs Leo | 6–11 | 35.29% |
| Grumpy vs Law | 10–6 | 62.50% |
| Grumpy vs Xiaoyu | 8–8 | 50.00% |
| Grumpy vs Leroy | 10–6 | 62.50% |
| Grumpy vs Jack-8 | 8–6 | 57.14% |
| Grumpy vs Lars | 6–7 | 46.15% |
| Grumpy vs Jun | 7–6 | 53.85% |
| Grumpy vs Azucena | 8–5 | 61.54% |
| Grumpy vs Nina | 8–4 | 66.67% |
| Grumpy vs Yoshimitsu | 7–3 | 70.00% |
| Grumpy vs Alisa | 5–5 | 50.00% |
| Grumpy vs Victor | 3–7 | 30.00% |
| Grumpy vs Feng | 4–5 | 44.44% |
| Grumpy vs Raven | 3–6 | 33.33% |
| Grumpy vs Anna | 3–6 | 33.33% |
| Grumpy vs Lidia | 4–3 | 57.14% |
| Grumpy vs Clive | 5–2 | 71.43% |
| Grumpy vs Claudio | 0–6 | 0.00% |
| Grumpy vs Kuma | 2–3 | 40.00% |
| Grumpy vs Panda | 0–2 | 0.00% |
| Grumpy vs Zafina | 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.