Sandy Mayer holds a solid clay court record of 35–27 across 62 matches (56.5%). A winning majority across 62 matches shows consistent ability to get results on clay. Claimed 2 titles on clay: Munich-2, Gstaad.

At Grand Slam level (Roland Garros): Sandy Mayer is 2–3 (40.0%) across 5 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

3 finals reached on clay — won 2, lost 1 (solid 67% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on clay. 5 semifinals. 8 quarterfinals.

vs. Top 10 on clay: 0–4 (0.0%, 4 matches). Top 10 opponents have represented a clear ceiling on clay; addressing that deficit is the single biggest lever for improving the overall record here.

By format on clay — best-of-five: 7–3 (70.0%); best-of-three: 28–24 (53.8%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 1983 — 6–1 (85.7%) from 7 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.