Katie Boulter's journey at the Pan Pacific Open in Tokyo came to a halt on Saturday as she suffered a straight-sets defeat to Sofia Kenin in the semi-finals. The British No. 1 was unable to secure a spot in her third WTA Tour final of the year, losing 6-4, 6-4 to the 2020 Australian Open champion. Kenin will now advance to face China's Zheng Qinwen in the final match.