Head-to-head
Pick any two dogs from the same or different breeds.
Rollin South
Border Collie · Dog
Lifetime avg
27.65
Rank #189
Best year
27.65
2026
Breed top %
19%
of 3150
Years active
2
2025–2026
Best rank
#61
in breed
Speed trend
+1.17
mph first→latest
Dog B