| GrumpyOldWeeb vs Kazuya | 18–25 | 41.86% |
| GrumpyOldWeeb vs Reina | 17–15 | 53.12% |
| GrumpyOldWeeb vs Bryan | 12–18 | 40.00% |
| GrumpyOldWeeb vs King | 17–10 | 62.96% |
| GrumpyOldWeeb vs Steve | 10–11 | 47.62% |
| GrumpyOldWeeb vs Jin | 9–10 | 47.37% |
| GrumpyOldWeeb vs Hwoarang | 12–6 | 66.67% |
| GrumpyOldWeeb vs Paul | 6–9 | 40.00% |
| GrumpyOldWeeb vs Dragunov | 9–4 | 69.23% |
| GrumpyOldWeeb vs Lars | 8–4 | 66.67% |
| GrumpyOldWeeb vs Leroy | 7–5 | 58.33% |
| GrumpyOldWeeb vs Heihachi | 9–3 | 75.00% |
| GrumpyOldWeeb vs Lee | 3–8 | 27.27% |
| GrumpyOldWeeb vs Eddy | 7–4 | 63.64% |
| GrumpyOldWeeb vs Asuka | 7–3 | 70.00% |
| GrumpyOldWeeb vs Law | 5–4 | 55.56% |
| GrumpyOldWeeb vs Yoshimitsu | 6–3 | 66.67% |
| GrumpyOldWeeb vs Leo | 6–3 | 66.67% |
| GrumpyOldWeeb vs Kuma | 2–7 | 22.22% |
| GrumpyOldWeeb vs Jun | 4–4 | 50.00% |
| GrumpyOldWeeb vs Lidia | 5–3 | 62.50% |
| GrumpyOldWeeb vs Xiaoyu | 7–0 | 100.00% |
| GrumpyOldWeeb vs Feng | 6–1 | 85.71% |
| GrumpyOldWeeb vs Clive | 3–4 | 42.86% |
| GrumpyOldWeeb vs Anna | 5–2 | 71.43% |
| GrumpyOldWeeb vs Alisa | 4–2 | 66.67% |
| GrumpyOldWeeb vs Panda | 4–2 | 66.67% |
| GrumpyOldWeeb vs Zafina | 2–3 | 40.00% |
| GrumpyOldWeeb vs Nina | 4–0 | 100.00% |
| GrumpyOldWeeb vs Victor | 3–1 | 75.00% |
| GrumpyOldWeeb vs Devil Jin | 2–1 | 66.67% |
| GrumpyOldWeeb vs Lili | 1–2 | 33.33% |
| GrumpyOldWeeb vs Shaheen | 3–0 | 100.00% |
| GrumpyOldWeeb vs Azucena | 2–1 | 66.67% |
| GrumpyOldWeeb vs Raven | 3–0 | 100.00% |
| GrumpyOldWeeb vs Jack-8 | 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.