Wimbledon is the oldest tennis tournament in the world, and widely considered the most prestigious tennis championship. Held in London at the All England Club in Wimbledon since 1877, it is one only of four Grand Slam tennis tournaments along with the Australian, French and US Open events. Wimbledon is the only tennis tournament still played on grass, the game's original surface. The 2015 edition will take place from 29 June to 12 July 2015. Novak Djokovic and Petra Kvitova are the reigning champions
Father's methods help Marion Bartoli win Wimbledon her unique way
Unorthodox style created by dad's unconventional early coaching sees Frenchwoman lift the Wimbledon crown without dropping a single set
Agencies at Wimbledon
People thought Walter Bartoli was a little odd when he ripped up the conventional coaching manual and began moulding the hybrid player who on Saturday won the Wimbledon singles title.
That player was his daughter Marion, whose punchy double-handed forehands and backhands, quirky moves and almost maniacal focus took her through the Wimbledon draw without losing a set.
Her 6-1, 6-4 victory over Germany's Sabine Lisicki completed a remarkable journey for the 28-year-old Frenchwoman and finally vindicated her father's faith in doing things his way.
"I'm no tennis player so maybe my ideas were completely new. That's why a long time ago I was disturbing everybody," Walter, who introduced his daughter to tennis aged six after studying the style of Monica Seles, said on a sun-splashed balcony alongside Centre Court.
"The tennis players thought this guy is crazy, these ideas are completely stupid but I kept believing in myself and Marion and me found our way to do things."
Bartoli has been consistently in the top 20 of the WTA rankings for six years but after a difficult season in which she had not gone past the quarter-finals at any tournament she was well down the list of potential Wimbledon winners.
She even stopped being coached by her father, working instead with former Wimbledon champion Amelie Mauresmo, but she sought him out for a warm embrace after firing down an ace to claim the title.
After some worrying times when she says she hit "rock bottom" everything finally fell into place - the ultimate reward for daring to be a little different.
"That's always been a part of my personality, to be different," she said. "I think being just like the other one is kind of boring.
"At the end of the day, when the spectators were looking at 10 matches they will remember this girl that was doing something different, playing inside the court or whatever.
"It was the perfect day. It was sunny. It was beautiful. Centre Court Wimbledon, it was packed," added Bartoli, the first French player to win a slam since Mauresmo in 2006.
"I won in two sets. I didn't drop a set for the whole championship. Even in my perfect dream, I couldn't have dreamed a perfect moment like that. That is beyond perfection."
With a first grand slam crown secured, Bartoli, who celebrated her victory by clambering into the players' box to embrace her father and Mauresmo, hopes the second phase of her career provides more of the success that once seemed so elusive.
"Of course I'm going to try my hardest to get some more. Now that I get one, I definitely believe I can get more of them," she said.
"But I just want to enjoy this one because I haven't still realised I'm really the Wimbledon champion.
"It will take me some few days. And actually when I do realise what I've done, then I will maybe think about the US Open and getting a shot over there."
Bartoli's style is based on taking the ball extremely early and being aggressive on every ball.
Those early days when she learned her strokes on an indoor court with no space behind the baselines are still evident because she always moves forward.
So is the intense focus that became an ingrained habit thanks to Walter's novel use of different coloured tennis balls, "some very speedy, some very low" he explains of one of the various unconventional coaching methods he introduced.
Sometimes she stands two metres inside the baseline to receive serve - a skill that requires incredible hand-eye co-ordination and Walter made use of video to study the way balls bounce.
The perpetual motion mannerisms, the imaginary swings behind the baseline, the running on the spot, the fist-pumps, are also key to the Bartoli blueprint.
"I told her to be a good player you have to have a routine and stick with it," said Walter, a doctor by profession. "The thing is for her not to be passive on the court. With her [double-fisted style] it's very difficult to come back in a rally - that's why she wins lots of quick rallies."
There have been "pain and tears" during her journey and heartache too when she missed the Olympics because of her decision not to play Fed Cup in protest at her father not being allowed to work with the team.
All that was forgotten on Saturday, even if Walter never imagined his daughter could one day be a grand slam champion.
"For sure I was thinking that she was a talented player and can have some fun on the tennis court, and that's all," he said.
"She asked to be a champion and I helped her be one. She used to say 'Dad I want to improve my serve, have more speed', and I'd find each time a new exercise."
Reuters, Agence France-Presse