By: Tanner Torres First invented by Dr. Paul Hawkins in 2001. Extremely complex computer system Costs around $20,000-$25,000 per court for one week Hawk-Eye is not featured at over 60 events across the ATP, WTA , and ITF tours 10 high-speed cameras at different angles and positions around the court Creates a 3D trajectory of the path of the ball Uses the 3D trajectory to determine the exact touch area the ball made with the court when it bounced Exact bounce mark is determined and shown via virtual software Using the triangulation of images from cameras players can see exactly whether the ball was in or out Only a 3.6 mm margin of error “The ball's moving so fast these days that sometimes it's impossible for anyone to see, even a trained official. With instant replay we can take advantage of technology and eliminate human error. Having just a few challenges will make it both fun and dramatic for fans at the same time.” Each player is allowed 3 unsuccessful challenges per set If the set reaches a tie-breaker, each player is awarded 1 extra challenge If the player’s challenge is unsuccessful, then the player loses that challenge. Can measure speed of the ball at any point during a rally Service patterns, length ran during rally, service comparisons, and percentage of time a player spends in different regions of court The History of Hawk-Eye 2001 System was developed by Dr. Paul Hawkins 2005 Hawk-Eye tested by the ITF and passed for professional use 2006 The Nasdaq-100 Open in Miami was the first tennis tour event to use Hawk-Eye 2006 The U.S. Open becomes the first grand-slam tournament to implement the Hawk-Eye challenge system 2007 The Australian Open and Wimbledon Championships also adopt the Hawk-Eye System 2008 Announced uniform set of rules: 3 incorrect challenges per set plus one extra in the event of a tiebreak 2012 Hawk-Eye is now featured at over 60 events across the ATP, WTA, and ITF tours. BBC. "Hawk-Eye Challenge Rules Unified." BBC News. BBC, 19 Mar. 2008. Web. 11 Nov. 2012. <http://news.bbc.co.uk/sport2/hi/tennis/7305404.stm>. Hawk-Eye Innovations Ltd. "Tennis." Hawk-Eye Innovations. Hawk-Eye Innovations Ltd., n.d. Web. 11 Nov. 2012. <http://www.hawkeyeinnovations.co.uk/page/sports-officiating/tennis>. Mullins, Justin. "Hawk-Eye in the Crosshairs at Wimbledon Again." - IEEE Spectrum. - IEEE Spectrum, June 2008. Web. 11 Nov. 2012. <http://spectrum.ieee.org/computing/software/hawkeye-in-thecrosshairs-at-wimbledon-again>. Topend Sports. "Hawk-Eye Line-calling System." Hawkeye Tennis LineCalling System. Topend Sports, 10 June 2012. Web. 11 Nov. 2012.<http://www.topendsports.com/sport/tennis/hawkeye.htm>. Tsang, Jason. "Technology in Tennis: Hawk-eye." Jason Tsang's Blog. Blogger.com, 14 July 2006. Web. 12 Nov. 2012. <http://blog.jasontsang.ca/2006/07/technology-in-tennis-hawkeye.html>.