John Newcombe has been dominant on grass, posting 164–45 across 209 matches (78.5% — exceptional). Few players in the Open Era have sustained that level of dominance across a full career on grass. 7 titles on grass: Melbourne, Wimbledon, Hoylake, Australian Open, US Open — a record that reflects consistent ability to close out tournaments on this surface.

At Grand Slam level (Wimbledon): John Newcombe has been outstanding — 89–18 (83.2%) across 107 matches. Winning more than 7 in 10 Grand Slam matches on grass is the benchmark of an all-time great on this surface.

15 finals reached on grass — won 7, lost 8 (47% conversion) — capable of reaching finals consistently, with room to improve at the decisive moment. 22 semifinals. 32 quarterfinals.

vs. Top 10 on grass: 5–4 (55.6%, 9 matches). Winning above .500 against the world's best on grass is a benchmark of genuine elite quality on this surface.

By format on grass — best-of-five: 108–25 (81.2%); best-of-three: 56–20 (73.7%). Slightly better in five-set matches on grass — a positive sign for the Slams specifically.

Best season: 1975 — 9–0 (100.0%) from 9 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.