Coric, who had failed to win a match in his last two appearances in Beijing and Shenzhen, saved two break points at 3-3 in the second set and clinched the first four games of the decider to record his 32nd match win of the season.
Ukrainian fourth seed Elina Svitolina powered into the third round of the U.S. Open with a 6-4, 6-4 win against Russian Evgeniya Rodina on Thursday.
Maria Sharapova's US Open preparations took a major blow with the Russian World No 2 forced to withdraw from next week's WTA event in Toronto.
IMAGES from the matches played at Miami Miasters in Key Biscayne, Florida, on Wednesday
Images from matches played on Day 5 at the Australian Open in Melbourne Park on Friday
Here are eight women to watch during the US Open which starts on Monday.
SSerena Williams swept past Anastasija Sevastova 6-3, 6-0 on Thursday and into the final of the US Open to sit one win away from a record-equalling 24th Grand Slam title.
Holder Serena Williams survived her toughest challenge yet at this year's French Open as she battled into the fourth round with a 6-4, 7-6(10) win over Frenchwoman Kristina Mladenovic in a rain-disrupted match on Saturday.
Serena, a six-times champion in New York who is seeded 17th, will start her campaign against Polish world number 60 Magda Linette and could face Venus in the third round before a possible fourth-round showdown with Romanian top seed Halep.
Images from Day 4 of the French Open, at Roland Garros, in Paris.
Rafael Nadal reached the Olympic Games quarter-finals on Thursday, winning the first of 10 matches he will need to sweep in just four days if he is to secure triple Rio gold. The 2008 champion defeated Gilles Simon 7-6 (7/5), 6-3 for his eighth win over the Frenchman in nine meetings. Nadal, a 14-time major winner, is playing in his first tournament in two months after a wrist injury caused an early withdrawal from the French Open.
Nick Kyrgios continued his impressive run of form ahead of this month's Australian Open by powering the host nation to the mixed-team Hopman Cup title against Ukraine in Perth on Saturday.
The 36-year-old has been practising hard on the grass and few would bet against her becoming the first mother to win the title since Evonne Cawley 38 years ago.
A calm Sloane Stephens picked her shots to perfection to overcome Japan's Naomi Osaka in a battle between the last two US Open champions at the WTA Finals on Monday before top seed Angelique Kerber was upset by Kiki Bertens.
World number one Naomi Osaka was beaten in her opening match at the Dubai Duty Free Tennis Championships on Tuesday, losing to France's Kristina Mladenovic 6-3, 6-3 on her return to competitive action after winning last month's Australian Open.
Muguruza used her experience to get out of trouble, eventually set up a meeting with Ukrainian 10th seed Elina Svitolina in just over two hours under a relentless sun at Indian Wells.
Britain's Johanna Konta will become the first British woman to reach the top 10 of the WTA rankings for 32 years on Monday after reaching the China Open final on Saturday.
The French Open witnessed a stunning upset on its very first day as 18-year-old Anastasia Potapova outclassed Angelique Kerber 6-4, 6-2 in the first round match on Sunday.
Images from Day 9 of the French Open in Paris on Monday.
From selfies to fist fights, Rediff.com has the best pictures from the last week snapped right here...
"Specifically, with Bouchard we are comfortable with our decision of putting her on Ashe, there are a lot of matches to schedule today, things could have gone many different ways," USTA spokesman Chris Widmaier told Reuters.
The 2009 champion who will next face Roger Federer, saved two match points in the fourth set of what was arguably the best of the tournament so far.
Four times now, twice at Wimbledon (2018, 2019) and at the US Open (2018, 2019) Serena Williams has come agonizingly close to that 24th Grand Slam only to fall at the final hurdle.
Novak Djokovic destroyed a woeful Stefanos Tsitsipas 6-1, 6-2 to book his place in the semi-finals of the Paris Masters.
Images from the third day at the US Open, the final Grand Slam tournament of the year, in New York, on Wednesday:
Russia's Elena Vesnina ousted German second seed Angelique Kerber 6-3, 6-3 to reach the quarter-finals of the BNP Paribas Open at Indian Wells, California on Tuesday.
Croatia's Mirjana Lucic-Baroni, who made the third round of the 1997 US Open also at 15, was the previous youngest player to advance to that stage of a grand slam.
Images from Day 11 of the 2020 French Open at Roland Garros, in Paris, on Wednesday.
Pliskova will be guaranteed toppling Germany's Angelique Kerber if she prevails against Halep who would need to go on and take the title to seize the top ranking.
At one stage Yuki was a break up, serving for the opening set but lost his serve and eventually the set. After drawing parity, Yuki twice lost his serve to fall behind 0-3 in the decisive set and never recovered.
"I think she will win a Grand Slam. Which one and when I don't know, but definitely clay is a good surface for her."
Svetlana Kuznetsova opened the defence of her Sydney International title with a comfortable 6-1, 6-4 victory over Irina-Camelia Begu on Sunday as the Australian Open warm-up event suffered a pair of big-name withdrawals.
Serena Williams brushed off some serving troubles before cruising to a 6-4, 6-3 win over Elina Svitolina on Saturday and will meet Simona Halep in the Western & Southern Open final.
Nadal faced no break points in a ruthless display to set up a meeting with Canadian Denis Shapovalov.
Images from Day 7 at the US Open.
The 16-times Grand Slam champion, who has been slightly ill lately, was kept on his toes before racing to victory to set up a meeting with seventh seed Stefanos Tsitsipas.
India will host its first WTA tournament in five years when the city of Mumbai stages a $ 125,000 event in November, giving home players an opportunity to compete with the world's top-50.
China's Su Bingtian held off his opponents with a late burst of speed to win the event in 9.92 seconds.
Halep became the first Romanian to reach the summit of the women's rankings when she beat French Open champion Jelena Ostapenko in the semi-finals of the China Open in Beijing, a feat she feels is the high point of her career to date.
Summary of sports events and persons who made news on Thursday
