Djokovic’s 6-4, 4-6, 2-6, 6-3, 6-4 victory means he will return to No. 1 in the rankings, replacing Rafael Nadal.
Djokovic improved to 16-0 in semifinals and finals at Melbourne Park. No other man in the history of tennis has won this tournament more than six times. Only Roger Federer, with 20, and Nadal, with 19, have won more men’s Grand Slam singles trophies.
Thiem was appearing in his third major final. He has lost them all.