According to a statement released by the federation, both were named ITF World Champions, after they both won three of the four Grand Slams in 2015 and are well clear in the world rankings.
While Serena Williams won the award for a sixth time, Djokovic won the award for a fifth time.
Serena Williams, Djokovic named ‘world champions’
He got even closer to the Grand Slam than Williams, who was beaten in the US Open semi-finals, as he only missed out on a first Roland Garros crown in the final against Stan Wawrinka.
Speaking after been awarded, Djokovic said: “My season was the best of my career with many highlights. It inspires me even more to keep on going, and I hope to continue to play at this level in 2016.
On her part, Serena Williams said: “It means a lot to me to be named the ITF World Champion for the sixth time. I am proud to have achieved my second Serena Slam, in what has been an amazing year for me.”
The ITF’s selection of its senior
World Champions is based on an objective system that considers all
results during the year, but gives special weight to the Grand Slam
tournaments, and two ITF international team competitions, Davis Cup by
BNP Paribas and Fed Cup by BNP Paribas.