Head-to-head
Pick any two dogs from the same or different breeds.
MACH Darkside's Gimme A Reason
Border Collie · Dog
Lifetime avg
26.44
Rank #305
Best year
26.39
2025
Breed top %
41%
of 2750
Years active
2
2025–2026
Best rank
#110
in breed
Speed trend
-0.12
mph first→latest
Dog B