In 2017, the Brussels Griffon crown went to Ah-Z's Mad Hatter at 20.58 mph, up from 19.84 mph the year before — the 2nd straight year planting a flag atop the Brussels Griffon rankings, clear of the field — the best of 4 ranked. Line the breeds up by their fastest dog and the Brussels Griffon lands 155th out of 191. Behind the leader, the top 4 averaged 19.0 mph.
See full AKC Fast CAT speed rankings — by breed, by year, and all-time — on Dash-Hound.