In the clash of the former Auckland winners, Juan Martin del Potro defeated David Ferrer by 6-4 6-4 in an hour and 45 minutes, advancing to his 30th ATP final. This was their 11th meeting and the first since US Open 2016, with Delpo winning for the third time in a row. The Argentine served at 46% and he defended his games efficiently, saving 6 out of 7 break points and stealing rival's games 3 times after a poor performance from Ferrer on his second serve. Juan Martin broke in the very first game of the match when he forced an error from Spaniard, and he moved 2-0 ahead when he saved a break point in the following game.
A poor forehand from the Argentine returned David to the scoreboard, he broke back in game 6 to level the score at 3-3 and it seemed that the opener could hit an hour mark if they continue in the same style. Instead of that, Del Potro broke again in game 7 when his rival placed a forehand long, and that was all he needed to clinch the opener after 2 good holds and a forehand winner in game 10 for a 6-4. Ferrer had his chances in the second set but he wasted 5 break points in games 4 and 8, unable to grab the lead and send the match into a decider. An amazing winner gave Delpo the pivotal break in the 9th game and he sealed the deal in the next game when Ferrer netted an easy forehand.