Sam Groth has found hard courts difficult, recording 22–45 across 67 matches (32.8%). 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): Sam Groth 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.

ATP Masters 1000 on hard (Indian Wells, Miami, Canada, Cincinnati, Shanghai, Paris): Sam Groth has struggled at Masters level on hard: 1–6 (14.3%) in 7 matches. Improving at this level is the clearest path to a stronger overall record on this surface.

vs. Top 10 on hard: 0–5 (0.0%, 5 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: 5–7 (41.7%); best-of-three: 17–38 (30.9%). Significantly better in five-set matches — a strong physical profile on hard that tends to tell as matches and tournaments progress.

Best season: 2015 — 12–16 (42.9%) from 28 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.