"I won two with him over here, both at Manawatu, but we thought he would be better suited to Menangle because he likes the speed on all the way," said Tim.
"So he is still very much a family horse and when he won this race last season we were thrilled but to do it again is unbelievable."
None of the Halls travelled to Menangle to see the race, not wanting to jinx Keystone Del, but when Hall started yelling in his lounge at the top of the straight he is pretty sure he got the attention of his Motumaoho neighbours.
Keystone Del downed Canterbury trotter Stent, who was luckless, but the NZ favourite Master Lavros lost his chance with an early gallop.
Little went right for the huge New Zealand team at yesterday's A$2 million meeting, with Adore Me the most surprising defeat.
She was trapped three wide from the 1200m till hitting the lead at the 300m but was gunned down late into second, with trainer-driver Mark Purdon citing the fast time on the then wet track.
Her stablemate Willow raced below her best when fading to third in the NSW Oaks, while Isaiah was brave in third in the NSW Derby after sitting parked.
The New Zealanders simply didn't fire in the Chariots of Fire, with Franco Nelson, Elios and Border Control all unplaced.