Ken Rosewall has been dominant on clay, posting 134–36 across 170 matches (78.8% — exceptional). Few players in the Open Era have sustained that level of dominance across a full career on clay. With 14 titles, among the most prolific clay court champions in the Open Era: Bournemouth, Roland Garros, Hollywood, Cincinnati and 8 more.

At Grand Slam level (Roland Garros): Ken Rosewall has been outstanding — 15–2 (88.2%) across 17 matches. Winning more than 7 in 10 Grand Slam matches on clay is the benchmark of an all-time great on this surface.

20 finals reached on clay — won 14, lost 6 (solid 70% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on clay. 26 semifinals. 32 quarterfinals.

vs. Top 10 on clay: 2–5 (28.6%, 7 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: 26–3 (89.7%); best-of-three: 108–33 (76.6%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Peak season: 1972 — 18–1 (94.7%) from 19 matches. That year captures the ceiling of what Ken Rosewall can do on clay when performing at their best and represents the standard to aim for.

Ken Rosewall put together an impressive 14-match winning streak on clay, highlighting the ability to maintain high performance across multiple tournament rounds and events.