Spaniard Sara Sorribes Tormo won the fourth longest women’s tour-level match in history on Thursday when she beat wild card Gao Xinyu in 4 hours and 15 minutes in the first round of the China Open. Her 6-7 (4-7), 7-5, 7-5 win came just eight days after German Laura Siegemund took 4 hours and 9 minutes to defeat Wang Xiyu in the Hua Hin second round. The 27-year-old Sorribes Tormo has now played in four of the 13 longest matches of the women’s Open era but this is the first time she has gone over 4 hours. In contrast, it took Czech player Karolina Muchova just 62 minutes to dispatch Anna Blinko…