Williams takes the women’s accolade for the fifth time, while for Djokovic, this is his fourth award.
Bob and Mike Bryan are named Men’s Doubles World Champions for the 11th time in 12 years, while Sara Errani and Roberta Vinci become the Women’s Doubles World Champions for the third successive year.
In junior tennis, Catherine Bellis and Andrey Rublev are named ITF Junior World Champions, while the ITF Wheelchair Champions are Yui Kamiji and Shingo Kunieda.
The ITF’s selection is based on an objective system that considers all results during the year, but gives special weight to the Grand Slams and the ITF competitions, Davis Cup and Fed Cup.
The 33-year-old Williams, who was topped the rankings throughout 2014 and won her 18th Grand Slam at the US Open, is the oldest player to be named the singles champion. She said:
“This was a year of challenges and triumphs, so to win another Grand Slam and retain my year-end No1 ranking is an accomplishment I’m very proud of. I’m grateful to have the support of the tennis community in every way possible. I can’t wait for 2015.”
Djokovic reclaimed the No1 ranking after winning his seventh Grand Slam at Wimbledon, and was also a finalist at Roland Garros. He won seven titles during the year including the season-ending ATP World Tour Finals. Djokovic is one of only four men to be named world champion four or more times, along with Ivan Lendl, Pete Sampras and Roger Federer.
Bob and Mike Bryan won their 16th Grand Slam and 100th title overall at the US Open. They won 10 titles during the year, including the World Tour Finals, and were also runners-up at Wimbledon.
Errani and Vinci are only the second pair to be named Women’s Doubles World Champions on three occasions. The Italians completed the career Grand Slam with their first victory at Wimbledon, and were also champions at the Australian Open and runners-up at Roland Garros.
They said: “We are both really happy world champions for the third consecutive year. It is a great pleasure and honour to have finished this year as No1 in the doubles ranking again.”
Bellis, at 15 years old, is the youngest champion since 2006. She won four singles titles, sealing the year-end No1 at last week’s Orange Bowl.
She said: “It was my goal to be the year-end No1 from when I started playing in the juniors two years ago and I am ecstatic that I was able to reach this milestone as a 15-year-old. It is an honour to be in such great company with all of the amazing and legendary juniors before me.”
Rublev is the first Russian male in any category to be named ITF World Champion after achieving the year-end No1 boys’ junior ranking. The 17-year-old won his first Grand Slam title at Roland Garros.
Kunieda becomes Men’s Wheelchair World Champion for the sixth time after retaining the year-end world No1 ranking. The 30-year-old only lost one match all year, winning 12 singles titles and boasting a 51-1 overall win-loss record. He won all three Grand Slam singles events, taking his total major titles to 17.
The 20-year-old Kamiji captured her first two Major titles at Roland Garros and the US Open, and was runner-up at the Australian Open. She also partnered GB’s Jordanne Whiley to the women’s doubles Grand Slam.
She said: “2014 is definitely the year to remember in my career. I was proud to win my first two Grand Slam titles and reach the final of the Australian Open. It was also very special to achieve the doubles calendar Grand Slam and win the Doubles Masters with my best friend Jordanne Whiley.”
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BIOGRAPHY: Ethan Hazard
BIOGRAPHY: Daniel Sturridge