Pretty sure this guy can catch your dog even if your dog was on cocaine, remained focus, and had someone feeding it water periodically:
[1] https://www.irunfar.com/aleksandr-sorokin-smashes-24-hour-wo...
[1] https://www.irunfar.com/aleksandr-sorokin-smashes-24-hour-wo...
Still, this is an exception to the rule - overall humans outperform almost all animals when it comes to endurance running.