Switzerland's Roger Federer hits a shot during his match against Australia's Lleyton Hewitt for the launch of a new format of tennis called " Fast4" at the Sydney Entertainment Centre January 12, 2015.
Springsure Tennis Club
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Fast4 Tennis: The Fun & Fast Way to Play Tennis - Tennis Blog
Fast4 Tennis: The Fun & Fast Way to Play Tennis - Tennis Blog
Luke Difranco (@LukeDTennis) / Twitter
Nick Kyrgios calls for Fast 4 format to be included on the ATP Tour
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Tennis tries a new format with fast 4 | 13 January, 2015 | All News | News and Features | News and Events | Tennis Australia
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Fast4 | Ways to play | Learn | Tennis Australia
The new FAST4 tennis format unhelpfully explained | The Courier Mail
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PDF) Probabilistic models comparing Fast4 and traditional tennis
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The Rules of Tennis - EXPLAINED! - YouTube
