North Harbour, on the other hand, had a penalty corner well saved by Wills Taylor before they managed the field goal, which made the result safe for them.
Overall, however, it was a brave showing from Wairarapa with Henry Phelps, Wills Taylor, Ethan Presow and Alex Hare all having excellent games.
That defeat meant Wairarapa qualified for the top eight in second place behind North Harbour in their pool and put them into a quarter-final against unbeaten Canterbury, who won five from five in their pool.
Meanwhile, Wairarapa had a 1-1 draw with Hawke's Bay and a 3-2 loss to Nelson on the third day of play at the Collier Trophy national girls under-13 tournament at Pakuranga.
Annabel Butterick scored the goal against Hawke's Bay while Poppy Lambert and Nicola Wall netted against Nelson.
With two draws and three losses from five games, Wairarapa finished bottom of their pool and were to play Auckland B in the first of their crossover games.