The top seed Juan Martin Del Potro has become the first player from Argentina to win the Heineken Tennis Open in Auckland.
Del Potro beat the American sixth seed Sam Querrey 6-4,6-4.
The world number nine began strongly, breaking in the first game, before sixth-seed Querrey broke back in the sixth and took a 4-3 lead.
However, the Argentine rattled off the next three games to take the first set.
Querrey had the opportunity to get back into the match with three break-point opportunities in the second set but the tall Del Potro was able to save all three, though he also failed on two break opportunities himself.
Del Potro finally managed to seize the advantage when he broke in the ninth game and then produced a clinical service game in the 10th to seal the victory.
The doubles title was won by the top seeds Martin Damm and Robert Linstedt.