Ji Sung Nam defeated Ji Hoon Son 6-3 6-2 in the Seoul CH qualifying round 1 on hard. The upset overturned the form book — Ji Hoon Son came in defending last year's round of 16.
No previous meetings on record.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (146 vs 6). ATP, WTA & Challenger.