Kevin Kim has found hard courts difficult, recording 36–68 across 104 matches (34.6%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar.

At Grand Slam level (Australian Open & US Open): Kevin Kim has struggled at Grand Slam level on hard: 4–9 (30.8%) in 13 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

ATP Masters 1000 on hard (Indian Wells, Miami, Canada, Cincinnati, Shanghai, Paris): Kevin Kim is 7–9 (43.8%) across 16 Masters matches — below .500 in the Tour's deepest fields. Lifting that record here would unlock better results across the whole hard swing.

vs. Top 10 on hard: 0–11 (0.0%, 11 matches). Top 10 opponents have represented a clear ceiling on hard; addressing that deficit is the single biggest lever for improving the overall record here.

By format on hard — best-of-five: 4–9 (30.8%); best-of-three: 32–59 (35.2%). Slightly stronger in three-set contests on hard, though the five-set record is still respectable.

Peak season: 2005 — 15–17 (46.9%) from 32 matches. That year captures the ceiling of what Kevin Kim can do on hard when performing at their best and represents the standard to aim for.