Hawk-Eye continues to deliver twin benefits to tennis. As well as improving the level of umpiring for players, it has also become an intrinsic part of the fan experience, adding another level of drama and anticipation to matches.

Since its debut in Miami in 2006, the electronic line-calling system has been an integral part of Women’s Tennis Association (WTA) tournaments and it will once again be in action at the tour’s most prestigious event, the Shiseido WTA Finals Shenzhen.

The system’s high-speed ball-tracking cameras deliver instant video replays that enable officials to more accurately adjudicate on close line calls and player challenges. Players are entitled to make up to three incorrect challenges per set and an additional one if the set enters a tie-break.

The Hawk-Eye system is presented by Rolex, which became the Official Timekeeper of the WTA Finals in 2009 as part of its long-standing relationship with tennis. Since becoming the Official Timekeeper of The Championships, Wimbledon, in 1978, Rolex has cultivated enduring partnerships with many elite tournaments, including all four Grand Slam® events and the Rolex Shanghai Masters.

Rolex also partners with some of the game’s pre-eminent players. Reigning US Open champion Bianca Andreescu and Belinda Bencic – winner of the recent VTB Kremlin Cup in Moscow – are both making their debut at the WTA Finals. They are part of the Rolex family of tennis Testimonees which also includes Grand Slam® winners Caroline Wozniacki and Garbiñe Muguruza, Swiss phenomenon Roger Federer and retired Chinese star Li Na.

Rolex: An unrivalled reputation for quality and expertise

Rolex, a Swiss watch manufacture headquartered in Geneva, is recognized the world over for its expertise and the quality of its products. Its Oyster Perpetual and Cellini watches, all certified as Superlative Chronometers for their precision, performance and reliability, are symbols of excellence, elegance and prestige. The word “Perpetual” is inscribed on every Rolex Oyster. But more than just a word on a dial, it is a philosophy that embodies the company’s vision and values. Hans Wilsdorf, the founder of the company, instilled a notion of perpetual excellence that would drive the company forward. This led Rolex to pioneer the development of the wristwatch and numerous major watchmaking innovations, such as the Oyster, the first waterproof wristwatch, launched in 1926, and the Perpetual rotor self-winding mechanism, invented in 1931. Rolex has registered over 500 patents in the course of its history.

A truly integrated and independent manufacturing company, Rolex designs, develops and produces in-house the essential components of its watches, from the casting of the gold alloys to the machining, crafting, assembly and finishing of the movement, case, dial and bracelet. Furthermore, Rolex is actively involved in supporting the arts and culture, sport and exploration, as well as those who are devising solutions to preserve the planet.