Hey @delishtreats welcome here.
Even I can die to cover such distance. By the way both were training for this event since 2 years that too above 4000 meters altitude. We have noticed that this time Himalaya is behaving totally different.
There are no prize money involve in this, yeah off course they just wanted to finish this task for their selves. I think they need few months to recover from 480km.
Have a nice day you too, greetings from Himalayas.