Believe it or not. Zhang Beiwen is the one holding most badminton titles so far with 8! Li XR falls behind as the 2nd most title holders with 6. Therefore, it's not that surprising for Zhang leading Li 17-14.
Even if LXR advances to the semifinal tomorrow, she and Sung JH will probably be testing each other's endurance more than pitting their skills.
The statistic you're mentioning is misleading since Zhang has been opting for lower level tournaments whereas LXR plays at the highest level.
When was the last time CHN has three MD pairs in the QFs of a Superseries ? Didn't expect Chai/Hong to grab G1 from Bo/Moe.
Go Zhang Go! Bag another title is not that difficult since you already have 8, more than anyone else in the world!
G3: Li Xuerui 12 - 3 Zhang Beiwen 12-4, 12-5, 12-6, 13-6, 14-6, 14-7, 15-7, 15-8, 16-8, 16-9, 17-9, 18-9, 18-10, 18-11, 19-11, 20-11, 20-12 Li takes this match, 15-21, 21-15, 21-12