| GrumpyJoeBlack vs Steve | 9–12 | 42.86% |
| GrumpyJoeBlack vs Victor | 5–12 | 29.41% |
| GrumpyJoeBlack vs Hwoarang | 5–9 | 35.71% |
| GrumpyJoeBlack vs Reina | 8–5 | 61.54% |
| GrumpyJoeBlack vs Asuka | 4–7 | 36.36% |
| GrumpyJoeBlack vs Jin | 3–7 | 30.00% |
| GrumpyJoeBlack vs Kazuya | 3–7 | 30.00% |
| GrumpyJoeBlack vs Azucena | 7–2 | 77.78% |
| GrumpyJoeBlack vs Yoshimitsu | 4–4 | 50.00% |
| GrumpyJoeBlack vs Feng | 3–5 | 37.50% |
| GrumpyJoeBlack vs Lars | 4–4 | 50.00% |
| GrumpyJoeBlack vs Eddy | 5–3 | 62.50% |
| GrumpyJoeBlack vs King | 4–3 | 57.14% |
| GrumpyJoeBlack vs Jack-8 | 6–1 | 85.71% |
| GrumpyJoeBlack vs Leo | 6–1 | 85.71% |
| GrumpyJoeBlack vs Nina | 1–6 | 14.29% |
| GrumpyJoeBlack vs Leroy | 6–1 | 85.71% |
| GrumpyJoeBlack vs Xiaoyu | 2–4 | 33.33% |
| GrumpyJoeBlack vs Devil Jin | 4–2 | 66.67% |
| GrumpyJoeBlack vs Lee | 0–6 | 0.00% |
| GrumpyJoeBlack vs Law | 3–2 | 60.00% |
| GrumpyJoeBlack vs Bryan | 1–4 | 20.00% |
| GrumpyJoeBlack vs Lili | 1–4 | 20.00% |
| GrumpyJoeBlack vs Jun | 2–3 | 40.00% |
| GrumpyJoeBlack vs Dragunov | 2–2 | 50.00% |
| GrumpyJoeBlack vs Claudio | 0–3 | 0.00% |
| GrumpyJoeBlack vs Raven | 2–1 | 66.67% |
| GrumpyJoeBlack vs Kuma | 1–1 | 50.00% |
| GrumpyJoeBlack vs Alisa | 1–1 | 50.00% |
| GrumpyJoeBlack vs Shaheen | 1–0 | 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.