from the Chinese Wikipedia
2015: 杨鼎新 beat 陶欣然
2016: 杨鼎新 (2015 champion) beat 檀啸
2017: 芈昱廷 beat 唐韦星
2018: 柯洁 beat 党毅飞
2019: 芈昱廷 (2017 champion) beat 柁嘉熹
I'll check their romanised names and whether they have articles.
杨鼎新 is Yang Dingxin
陶欣然 is Tao Xinran
檀啸 is Tan Xiao
芈昱廷 is Mi Yuting
唐韦星 is Tang Weixing
柯洁 is Ke Jie
党毅飞 is Dang Yifei
柁嘉熹 is Tuo Jiaxi
So a very well-known crowd.