Bob Carmichael has found hard courts difficult, recording 50–62 across 112 matches (44.6%). 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): Bob Carmichael has yet to record a win on hard at this stage — 0–1 across 1 Grand Slam match. Breaking through here would mark a significant step forward on this surface.

12 quarterfinals on hard, including one run to the semifinal — regularly reaching that stage is a solid baseline, with the next step being to break through to the final rounds more often.

vs. Top 10 on hard: 0–6 (0.0%, 6 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: 8–6 (57.1%); best-of-three: 42–56 (42.9%). Significantly better in five-set matches — a strong physical profile on hard that tends to tell as matches and tournaments progress.

Best season: 1969 — 8–4 (66.7%) from 12 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.