Karolina Pliskova raised her game when it mattered to claim victory over Halep and earn a semi-final clash with Barty at the 2019 WTA Finals.
Ash Barty praised her serving performance as she reached the quarter-finals in Wuhan.
Madison Keys and Elina Svitolina are all set for another intriguing encounter at the US Open after straight-set victories.
Madison Keys set up a intriguing final against Svetlana Kuznetsova with an excellent straight-sets win over Sofia Kenin in the semi-finals.
Elina Svitolina suffered her fifth loss in seven matches since her return to the WTA tour following a knee injury when she lost to Alize Cornet.
Life on the tour isn't a walk in the park for the 37-year-old, but her legacy is already having a positive impact on some.
Sofia Kenin is looking to take the WTA by storm as she aims for grand slam success.