“I’m honoured to be named this year’s ITF world champion,” she said in a statement.
“I’m so proud of my team and I for what we have achieved and can’t wait for the 2020 season to begin.”
Nadal claimed the season-ending ITF world title for the fourth time after sealing an historic 12th French Open and a fourth US Open, as well as helping Spain to their sixth Davis Cup title.
On Thursday, the Spaniard was also voted by fellow players as the winner of ATP’s Stefan Edberg sportsmanship award for a second straight year and third time overall.
Former world No.1 Andy Murray, who underwent hip surgery in January, was named ATP’s comeback player of the year after successfully returning to win the European Open title in October.
Barty, meanwhile, won’t be ditching doubles in pursuit of individual honours in 2020.
Barty will carry a “if it ain’t broke, don’t fix it” approach into the summer of tennis as she promises to lay it all on the line in her quest for Australian Open glory.
And that includes playing doubles with her best mates on tour.