Agnieszka Radwanska will meet Johanna Konta in the China Open final following a 7-6 (7-3) 6-3 victory over Elina Svitolina.
Despite twice falling a break down in the opening set, Radwanska recovered to clinch the tie-break having allowed a set point to pass her by at 6-5.
The Pole won the opening five points of the breaker to leave Svitolina with too big a mountain to climb.
The second set proved far more straightforward for the third seed, whose three breaks of serve wrapped up the victory in an hour and 41 minutes.
Radwanska progresses to her third final of 2016, having beaten Svitolina in one of her two previous victories this year - at the Connecticut Open in August.
Konta reached Sunday's decider with a 7-6 (7-1) 4-6 6-4 victory over Madison Keys earlier in the day.