Can I join a league with other friends?

Yes. When entering you can create or join a league of friends to compete against. Leagues are collections of people -- friends, colleagues, co-workers, whomever -- who have agreed to have their own private contest within the larger contest. You can compete against the people you choose while also competing in the larger contest simultaneously. You can join public leagues at any time with no barrier to entry. To join a private league, you must obtain the league’s password or an invite link, or create your own and invite others to join.