Yecong He defeated Jacob Grills 6-2 7-6 in the Hong Kong F1 semi-final on hard.
He Y. took it in straight sets.
Yecong He beat Jacob Grills 6-2 7-6(4). Umpiry, "Yecong He vs Jacob Grills — Hong Kong F1 Semi-final", https://umpiry.com/match/2017-06-19/grills-vs-he-hong-kong-f1-sf?utm_source=cite (as of 19 June 2017).