23:30 CET - It's the end of our day but there is plenty of tennis to come overnight with semi-finals underway in Austin and Santiago and still to come in Merida.
What's more, there is the final in Acapulco between Tomas Machac and Alejandro Davidovich Fokina from around 04:00 CET.
Tune in to the Tennis Tracker tomorrow to catch up on all those results and more.
22:38 CET - Top seed Jessica Pegula has fought hard to earn her place in the Austin final. The American defeated Australian Ajla Tomljanovic 6-1, 4-6, 6-3 to book her spot in the decider.
Pegula will next face the winner of the second semi-final between Greet Minnen and McCartney Kessler.
17:47 CET - Stefanos Tsitsipas is the champion in Dubai! He's claimed his first ATP 500 title with a 6-3, 6-3 win over Felix Auger-Aliassime that came at the end of what was a seriously impressive week from the Greek player.
Is Tsitsipas finally getting back to his best? He will be back in the top 10 after today's title win!
Read all about the Dubai final here.
16:55 CET - Tsitsipas takes the first set! The world number 11 broke serve to make it 4-3 and then again to take the opener 6-3. Auger-Aliassime was able to get more break points (four) than his opponent, but couldn't convert any of them.
16:00 CET - Here we go then - the Dubai final between Stefanos Tsitsipas and Felix Auger-Aliassime is about to get underway.
Tsitsipas leads their head-to-head 6-3 and has won three of their last four clashes, but the Canadian has had the stronger year thus far.
11:00 CET - We still have five hours to go until today's action gets started but it will be worth the wait, with the Dubai final between Stefanos Tsitsipas and Felix Auger-Aliassime first up.
That clash will be followed this evening by semi-finals in Austin and Santiago, with Jessica Pegula and Francisco Cerundolo among those in action.
08:55 CET - It was a mixed evening for Americans in Austin with fifth seed McCartney Kessler beating Sorana Cristea 5-7, 6-4, 6-1 to move into the semis but Caroline Dolehide losing 6-3, 7-5 to Greet Minnen.
07:38 CET - There's plenty of overnight action to catch you up on, with the big story being that second seed Paula Badosa is out in Merida after being forced to retire while leading her quarter-final with Daria Saville 6-1, 3-5. The Aussie will next face Emiliana Arango after the world number 133 beat Rebecca Sramkova 5-7, 6-3, 6-0, while top seed Emma Navarro made it through on the other side of the draw with a 6-4, 6-2 win over Zeynep Sonmez.
Elsewhere in Mexico, Acapulco eighth seed Tomas Machac secured a spot in the final with a 6-4, 1-6, 6-4 win over Brandon Nakashima, and his opponent in it will be Alejandro Davidovich Fokina, who beat Denis Shapovalov 7-6, 7-6 to make the final two for the second tournament in a row.
07:30 CET - Hello and welcome to Flashscore's coverage of today's tennis!