Day three of the ASB Classic has largely been a good one for the tournament's top players, as the fourth and fifth seeds advanced to the quarter finals without major issue.
After first and second seeds Coco Gauff and Evina Svitolina both secured straight sets victories in the round of 32 on Tuesday, American Emma Navarro and Marie Bouzkova of the Czech Republic did the same to put themselves into the last eight.
Fourth-seed Navarro, 22, was untroubled in her round of 16 clash, easing to a straight sets victory over Russia's Elina Avanesyan.
Navarro outclassed her opponent 6-1, 6-2, and broke serve five times out of eight to march on relatively untroubled.
She won't be joined in the next round by compatriot Amanda Anisimova, who fell to a straight sets loss of her own.
In a methodical display, Bouzkova claimed a 6-0, 6-1 win in her round of 16 encounter and broke serve five times, beating her opponent without even sending down an ace.
Navarro will meet the winner of China's Yue Yuan and Croatia's Petra Martic in her quarter final and will be eyeing a semi-final encounter against Gauff later this week.
Meanwhile, Bouzkova will face the winner of Svitolina and Emma Raducanu, who play their round of 16 encounter on Thursday.
However, the tournament also suffered its first upset, as China's Xiyu Wang defeated compatriot and sixth seed Xinyu Wang in a straight sets thriller.
In a see-saw encounter, Xiyu took the first set 6-3, before Xinyu responded with a 6-3 set of her own.
In the third and deciding set, the pair matched each other blow for blow, before Xiyu claimed the tiebreaker to take it 76 and advance to the quarter final.
She'll meet the winner of Wednesday's late game between third seed Lesia Tsurenko and France's Diane Parry.
The night session will also see three Kiwis take the court, as doubles pair Monique Parry and Elyse Tse take on New Zealand's Jade Otway and Switzerland's Lulu Sun.
