The mixed doubles champions receive a wild card into the main draw of the U.S. Open.
Additionally, she and Murray got into the mixed doubles tournament on a late wild card.
Murray, 22, won eight of the last nine games to beat Kohlschreiber and set up the mixed doubles decider.
The England duo are one win away from being the first pair to retain the mixed doubles title since 1981.
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Once again the mixed doubles proved the decider and Medina Garrigues and Verdasco paired to see off Johansson and Tsonga (FRA) 6-3 6-3.
The mixed doubles pair from Belarus, Victoria Azarenka and Max Mirnyi, won the match (2-6, 6-3, 10-8), and the British took silver in mixed doubles.
He canceled his post-match press conference while he received treatment, but did return later to play in the mixed doubles with Serbian teammate Ana Ivanovic.
The 25-year-old beat former world No. 1 Novak Djokovic on his way to the final, and also claimed silver in the mixed doubles with Laura Robson.
In the 2006 World Championships, he coached all four of the finalists in the mixed doubles, with Robertson and Emms winning gold and Anthony Clark and Donna Kellogg silver.
Murray beat Roger Federer in the men's singles final at Wimbledon Sunday and also won silver in the mixed doubles, but showed no signs of tiredness with a 6-1 6-3 victory over his Italian opponent.
They also won the mixed doubles to complete a third successive victory in Group A and set up a clash with Spain's Fernando Verdasco and Anabel Medina Garrigues, who won all three of their Group B matches.
In the earlier mixed doubles final Sunday, wild-card entrants Jarmila Gajdosova and Matthew Ebden of Australia beat the Czech pair of Lucie Hradecka and Frantisek Cermak 6-3, 7-5.
Kevin Anderson beat John Isner in straight sets to draw the South Africans level before the concluding mixed doubles.
Draper, who won the Australian Open mixed doubles title last weekend in between making his professional golf debut at the Victorian Open, could only manage a level-par 72 in qualifying.
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There was to be no repeat of his first Grand Slam title - in the 2007 Wimbledon mixed doubles alongside Serbia's Jelena Jankovic.
The two played mixed doubles well enough in high school that Gordon once thought tennis was his best shot at a college scholarship.
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Her mother played for England twice in the 1980s, while her father is a coach and recently won the men's singles and mixed doubles title at the European Senior Championships.
She became the first Indian to win a WTA Tour title in 2005, she reached the fourth round of the U.S. Open later that year and won the Australian Open mixed doubles in 2009.
She went to New York this year determined to savor the occasion, playing in the singles, doubles and mixed doubles competitions while also watching as a fan as Andy Roddick ended his career during the grand slam event.
The teenager will wait before making a decision whether to play in the girls' singles next week but confirmed she plans to play in the senior doubles and mixed doubles.
England's Mike Tredgett and Nora Perry, who were the last pair to successfully defend their mixed doubles title 25 years ago, will be among the sell-out crowd for Sunday's final.
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That virtually ended Kohlschreiber's resistance as Murray took the tie into a lively mixed doubles.
They then combined to win a mixed doubles against the same opponents to complete the sweep in the international team competition.
Three-time champion Kim Clijsters, appearing in her final grand slam before retiring from the sport, faces Olympic mixed doubles silver medalist Laura Robson of Britain.
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Ramamurthy has entered singles and mixed doubles in the USTA Eastern Sectional qualifying tournament from June 9-15 at the USTA Billie Jean King Tennis Center, where the U.S. Open is played starting in late August.
Mr. Gimelstob competed on tour from 1996 through 2007, won the 1998 Australian Open and French Open mixed doubles titles with Venus Williams as his partner, and was ranked as high as 63rd while reaching the 3rd round of a major 5 times in his career (thrice at Wimbledon, twice at the U.S. Open).
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Then there are also the four Olympic gold medals, 22 doubles titles, two mixed doubles titles and 45 single titles.
Just hours after his win, the Brit added to his medal count by taking silver in mixed doubles alongside Laura Robson.
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