He Y.Sadler O.1 510ELO1 4451 501Hard ELO1 4561–9Last 103–7
Cite this
Yecong He beat Olly Sadler 6-1 6-2. Umpiry, "Yecong He vs Olly Sadler — China F4 Qualifying Round", https://umpiry.com/match/2018-04-30/he-vs-sadler-china-f4-qf?utm_source=cite (as of 30 April 2018).