Bong-Soo Kim has a competitive career record of 19–21 across 40 matches (47.5%). The record shows a player capable of competing at Tour level, though there is clear room to push the win rate higher.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Bong-Soo Kim has yet to record a win at Grand Slam level — 0–1 across 1 match. Breaking through here would mark a significant step forward.
By format — best-of-five: 10–7 (58.8%); best-of-three: 9–14 (39.1%). Significantly better in five-set matches — a strong physical profile that tends to tell as matches and tournaments progress.
Best season: 1989 — 6–3 (66.7%) from 9 matches. The best single-season display to date — a useful reference point as the career continues to develop.