This season so far, 3 Harriers have chased the lure into the AKC Fast CAT rankings, and right now Mason's The Trouble With Cheese At Blythmoor sits at the front of the pack — 24.06 mph, 100 yards in 8.50 seconds, already past last year's 23.92 mph best — on track for a 2nd straight year atop the Harrier rankings, narrowly ahead of Mason Branston Robin Hood (0.39 mph). That top speed makes the Harrier the 176th-fastest of 251 breeds in 2026. The top 3 average 23.4 mph. Nothing's settled until the season closes.
See full AKC Fast CAT speed rankings — by breed, by year, and all-time — on Dash-Hound.