Andy Murray beat Serbia's Viktor Troicki 6-4 6-3 to reach the Vienna Open final and boost his chances of qualifying for the World Tour Finals.
The Briton, 10th in the race to London, is competing in Austria alongside Spain's David Ferrer, who is ninth.
Top seed Ferrer, 32, overcame a scare to beat Philipp Kohlschreiber 6-3 2-6 7-6 (7-3) to reach Sunday's final.
The top eight players qualify for the season-ending Finals and if Murray, 27, beats Ferrer, he would move to eighth.
"I've been getting a bit better with each match," said Murray, who converted four break points compared to just one by his opponent.
"I need to play well on some key points. Whomever I play in the final, it won't be easy. David will be tough for sure, he's very motivated, like myself, for London."
Ferrer will know he will need to play better if he is to beat Murray in the final. He was forced to save eight of 11 break points against Germany's Kohlschreiber, who completely outplayed his opponent in the second set.
Tournaments in Valencia and Paris follow the Vienna Open in Murray's pursuit of ranking points.
|Six players are chasing the three remaining places for the ATP World Tour Finals (Cilic sixth in race but qualifies as he won US Open)|
|Player and position||Points||Tournaments played|
|5 Kei Nishikori (Jap)||4,265||20|
|7 Tomas Berdych (Cze)||3,945||20|
|8 Milos Raonic (Can)||3,750||17|
|9 David Ferrer (Sp)||3,715||22|
|10 Andy Murray (GB)||3,655||18|
|11 Grigor Dimitrov (Bul)||3,450||18|
Murray's chances of qualifying for the World Tour Finals were boosted by defeat for Wimbledon semi-finalist of Canada in round two of the Kremlin Cup in Moscow on Thursday.
He is still under pressure, though, from Bulgarian Grigor Dimitrov who is through to the final of the Stockholm Open after he beat Australian Bernard Tomic 6-3 7-5.
The 23-year-old will now face world number seven Tomas Berdych in Sunday's final after he overcame Matthias Bachinger 7-6 (9-7) 6-4.
Also in Stockholm, Jamie Murray failed to reach the final in the doubles, with Australian partner John Peers. The pair lost 6-7 (9-7) 6-3 10-6 to Eric Butorac and Raven Klaasen at the semi-final stage.