Hyung-Taik Lee has a competitive grass court record of 19–20 across 39 matches (48.7%). The record shows a player capable of competing here, though there is clear room to push the win rate higher.

At Grand Slam level (Wimbledon): Hyung-Taik Lee is 5–7 (41.7%) across 12 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

vs. Top 10 on grass: 0–3 (0.0%, 3 matches). Top 10 opponents have represented a clear ceiling on grass; addressing that deficit is the single biggest lever for improving the overall record here.

By format on grass — best-of-five: 6–8 (42.9%); best-of-three: 13–12 (52.0%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on grass.

Best season: 2004 — 4–1 (80.0%) from 5 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.