Recanati Celebrates 15 Years On ATP Challenger Tour In 2017, the Guzzini Challenger welcomed players and fans for the 15th time. A critical hard-court event in Italy, the tournament is traditionally held during the first week of Wimbledon. It has boasted Simone Bolelli (2012), Gilles Muller (2014) and Illya Marchenko (2016) as notable champions.