| Grundle Sniffa vs Kazuya | 15–2 | 88.24% |
| Grundle Sniffa vs Hwoarang | 10–5 | 66.67% |
| Grundle Sniffa vs King | 12–2 | 85.71% |
| Grundle Sniffa vs Yoshimitsu | 10–4 | 71.43% |
| Grundle Sniffa vs Fahkumram | 13–1 | 92.86% |
| Grundle Sniffa vs Jin | 10–3 | 76.92% |
| Grundle Sniffa vs Steve | 8–5 | 61.54% |
| Grundle Sniffa vs Reina | 13–0 | 100.00% |
| Grundle Sniffa vs Eddy | 8–3 | 72.73% |
| Grundle Sniffa vs Paul | 9–1 | 90.00% |
| Grundle Sniffa vs Lars | 7–3 | 70.00% |
| Grundle Sniffa vs Jun | 7–3 | 70.00% |
| Grundle Sniffa vs Bryan | 7–1 | 87.50% |
| Grundle Sniffa vs Zafina | 7–1 | 87.50% |
| Grundle Sniffa vs Azucena | 6–2 | 75.00% |
| Grundle Sniffa vs Raven | 4–4 | 50.00% |
| Grundle Sniffa vs Armor King | 6–2 | 75.00% |
| Grundle Sniffa vs Devil Jin | 5–2 | 71.43% |
| Grundle Sniffa vs Victor | 6–1 | 85.71% |
| Grundle Sniffa vs Law | 6–0 | 100.00% |
| Grundle Sniffa vs Feng | 6–0 | 100.00% |
| Grundle Sniffa vs Dragunov | 5–1 | 83.33% |
| Grundle Sniffa vs Leo | 6–0 | 100.00% |
| Grundle Sniffa vs Alisa | 4–2 | 66.67% |
| Grundle Sniffa vs Nina | 6–0 | 100.00% |
| Grundle Sniffa vs Leroy | 5–1 | 83.33% |
| Grundle Sniffa vs Lee | 5–0 | 100.00% |
| Grundle Sniffa vs Xiaoyu | 4–0 | 100.00% |
| Grundle Sniffa vs Claudio | 4–0 | 100.00% |
| Grundle Sniffa vs Kuma | 4–0 | 100.00% |
| Grundle Sniffa vs Heihachi | 4–0 | 100.00% |
| Grundle Sniffa vs Jack-8 | 2–1 | 66.67% |
| Grundle Sniffa vs Lili | 1–2 | 33.33% |
| Grundle Sniffa vs Asuka | 2–0 | 100.00% |
| Grundle Sniffa vs Shaheen | 2–0 | 100.00% |
| Grundle Sniffa vs Clive | 2–0 | 100.00% |
| Grundle Sniffa vs Anna | 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.