Can dog run 30k?

Hi guys! Do you think that is okay to take my dog to run with me on a 30km long trail and 850m elevation gain? He usually runs with me but shorter distances, 10-15k and he hikes regulary with us on weekends. But since this is quite a distance, I'm not sure will he be able to do all 30km. He is half labrador, half viszla, 4 years old. Thanks!