Hyeong Keun Song defeated Jong Sam Chung 6-1 6-3 in the Philippines Masters 4 round of 16 on clay. The upset overturned the form book — Jong Sam Chung came in leading the head-to-head 1–0. Hyeong Keun Song claimed a first win over Jong Sam Chung in two meetings, levelling the head-to-head at 1–1.
Keun Song H. took it in straight sets.
Clay: Keun Song H. leads 1–0 · Hard: Chung J. leads 1–0
Hyeong Keun Song beat Jong Sam Chung 6-1 6-3. Umpiry, "Hyeong Keun Song vs Jong Sam Chung — Philippines Masters 4 Round of 16", https://umpiry.com/match/1994-02-07/chung-vs-song-philippines-masters-4-r16?utm_source=cite (as of 7 February 1994).