Season Finale! Ariana leads a tight Leaderboard ... Who will be crowned the All-Round Champion?

Approximately 2,400 student-athletes will compete all season long for the opportunity ... will compete to win the ultimate title, National Champion.

In the season four premiere ... in the ultimate sports competition where one of them will be crowned the All-Round Champion.

Ten of the best teen athletes at the top of their game step outside their comfort zones to compete against each other in all their rivals' sports - one hardcore athlete will be crowned the All-Round ...