Gene Mayer has an impressive hard court record of 115–39 across 154 matches (74.7% — strong). A win rate of that calibre over 154 matches is a reliable indicator of genuine quality on this surface. 8 titles on hard: Cologne, Los Angeles, Cleveland, Stockholm, Rotterdam, Metz — a record that reflects consistent ability to close out tournaments on this surface.

At Grand Slam level (Australian Open & US Open): a positive 16–7 (69.6%) across 23 matches — a player who generally rises to the occasion at the Slams on hard.

11 finals reached on hard — won 8, lost 3 (solid 73% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on hard. 15 semifinals. 23 quarterfinals.

vs. Top 10 on hard: 4–9 (30.8%, 13 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: 17–7 (70.8%); best-of-three: 98–32 (75.4%). Slightly stronger in three-set contests on hard, though the five-set record is still respectable.

Best season: 1981 — 13–2 (86.7%) from 15 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.

Gene Mayer assembled a remarkable 18-match winning streak on hard — a run of that length goes far beyond form and into a different level of dominance on this surface.