The championship was won by Canterbury, who defeated Wellington 2-1 in the final.
Having known success in this tournament before, as young coach Connor Hoskin had previously won it, Wanganui had a good start in the round robin, including beating Wellington 2-1, while they defeated Hawke's Bay 4-2 in the quarterfinals.
Latus finished as top goal scorer with seven, while Hobbs and Ben Skedgwell got six each.
Having been disappointed to have already dropped out of podium contention after losing their Under 15 Girls National Championship quarterfinal in a penalty shootout with Central Otago, Wanganui rebounded by finishing in the highest place possible for them of fifth in Nelson.
After hammering Hawke's Bay 5-0 on Friday, Wanganui won the playoff for fifth against Marlborough 2-1.
Marlborough struck first with an 11th minute field goal from Grace Calder, but Wanganui levelled in the 21st through Amelia McKay.
No goals were scored in the remainder of the half and then with just three minutes left in the match, Wanganui were likely dreading the possibility of another penalty shootout.
They insured that didn't happen, as Maggie Jones converted a penalty corner with two minutes left to win the game.
The victory meant the Jan Dixon-coached team had won five of their six games at the tournament.
Jones was the top goal scorer with six, followed by McKay with four.
Canterbury won the tournament, beating South Canterbury 1-0 in the final.