By Nick Butler

David Wagner will end the season as quad singles world number one ©Getty ImagesUnited States' quad tennis star David Wagner will end 2014 as the world's top ranked singles and doubles player, while Japanese duo Shingo Kunieda and Yui Kamiji lead the male and female wheelchair singles standings.  

Wagner receives the world leading singles accolade for the seventh time since 2005, and the fifth year in succession, after a dominant 12 months which started with victory at the Australian Open and ended with a record seventh success at the Wheelchair Tennis Masters.

The Californian also won a total of nine quad singles titles on the 2014 UNIQLO Wheelchair Tennis Tour, including three of the year's six Super Series titles and three ITF 1 Series titles. 

He ends 2014 with a win-loss record of 49-9 in quad singles competition, while he also won 11 doubles titles during 2014, six of which came with US team mate Nick Taylor, to secure a remarkable 11th season-ending doubles lead.

"It's a real honour to receive the year-end number one singles award for the seventh time and the doubles award for the eleventh time," he said.

"I am happy with my results for this year in both singles and doubles.

"I am looking forward to next year and competing and representing the quad division all around the world."

Yui Kamiji formed one part of Japanese domination in the male and female wheelchair singles rankings ©Getty ImagesYui Kamiji formed one part of Japanese domination in the male and female wheelchair singles rankings ©Getty Images

Kamiji finishes a year in poll positions on the rankings for the first time after dominating the Grand Slam tournaments in 2014, with the 20-year-old winning at Roland Garros and the US Open, after first finishing runner-up at the Australian Open.

She also won a total of eight singles titles during 2014 and is the first Asian woman to receive the International Tennis Federation honour.

But Japanese counterpart Kunieda is far more used to being on top of the pile, topping the rankings for the sixth time after losing only one match all year.

The 30-year-old won 12 singles titles on the UNIQLO Wheelchair Tennis Tour, including all three Grand Slam singles events to take his total major titles to 17, as well as the season-ending Wheelchair Tennis Masters.

"I am very happy to be world champion six times", he said.

"I played well this year and still feel I am improving my tennis, I'd like to thank my team and am already looking forward to next season."

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