Sorted by points… U18 - 2-Anderson and U18 - 3-Carter are tied for 1st; U18 - 1-Afheldt, U18 - 4-Gorman, U18 - 5-O'Reilley, U18 - 6-Seifer, U18 - 7-Baker, and U18 - 8-Livingstone are tied for 3rd.
Using points head-to-head… U18 - 3-Carter 2, U18 - 2-Anderson 0; U18 - 3-Carter is 1st, U18 - 2-Anderson is 2nd.
Points head-to-head was skipped because it only applies when the tied teams played each other.
Using most wins… U18 - 1-Afheldt 0, U18 - 4-Gorman 0, U18 - 5-O'Reilley 0, U18 - 6-Seifer 0, U18 - 7-Baker 0, U18 - 8-Livingstone 0; still tied.
Using differential [GF/(GF+GA)]… U18 - 5-O'Reilley 0.333, U18 - 1-Afheldt 0.000, U18 - 4-Gorman 0.000, U18 - 6-Seifer 0.000, U18 - 7-Baker 0.000, U18 - 8-Livingstone 0.000; that means U18 - 5-O'Reilley is 3rd, U18 - 1-Afheldt, U18 - 4-Gorman, U18 - 6-Seifer, U18 - 7-Baker, and U18 - 8-Livingstone are tied for 4th.
Using least GA… U18 - 1-Afheldt 0, U18 - 4-Gorman 0, U18 - 6-Seifer 0, U18 - 7-Baker 0, U18 - 8-Livingstone 0; still tied.
Using most GF… U18 - 1-Afheldt 0, U18 - 4-Gorman 0, U18 - 6-Seifer 0, U18 - 7-Baker 0, U18 - 8-Livingstone 0; still tied.
U18 - 1-Afheldt, U18 - 4-Gorman, U18 - 6-Seifer, U18 - 7-Baker, and U18 - 8-Livingstone are tied after all rules applied.
The above uses the current tie-breaker settings from the website; official rules prevail in any discrepancies