Juan Martin del Potro has massively boosted his chances of qualifying for the ATP World Tour Finals after defending his Stokholm Open title on Sunday.

The fourth seed put on a master class as he dispatched of 2012 champion Grigor Dimitrov 6-4 6-2 in Sweden.

The 29-year-old now boasts a 6-2 winning record against the Bulgarian, however, he had lost their two most recent meetings in Beijing and Cincinnati.

Del Potro, who claimed his first title since lifting the trophy a year ago, dominated with his serve and powered through nine aces.

The Argentine saved all four break points he faced and he felt it was the best performance he had managed to put in all week.

Del Potro said: “I played the best match of the week against Grigor today. Unlucky for that, sorry Grigor.

“It’s amazing to come back and hold this big trophy and hopefully I can come next year as well.”

Del Potro can be backed at 23.00 to win the 2018 Australian Open and is still hopeful of forcing his way into contention for a place at the season-ending World Tour Finals event at London’s O2 Arena.

The 29-year-old has moved up to 14th in the Race to London standings with 2,135 points, which leaves him 470 adrift of Pablo Carreno Busta, who sits in the final qualifying berth.