Sorted by points… U21 Team 3 and U21 Team 5 are tied for 1st; U21 Team 1 and U21 Team 4 are tied for 3rd.
Using points head-to-head… U21 Team 3 0, U21 Team 5 0; still tied.
Using most wins… U21 Team 3 3, U21 Team 5 3; still tied.
Using differential [GF/(GF+GA)]… U21 Team 3 0.571, U21 Team 5 0.500; U21 Team 3 is 1st, U21 Team 5 is 2nd.
Using points head-to-head… U21 Team 1 0, U21 Team 4 0; still tied.
Using most wins… U21 Team 1 3, U21 Team 4 2; U21 Team 1 is 3rd, U21 Team 4 is 4th.
The above uses the current tie-breaker settings from the website; official rules prevail in any discrepancies