John McEnroe has been dominant on grass, posting 121–20 across 141 matches (85.8% — exceptional). Few players in the Open Era have sustained that level of dominance across a full career on grass. 8 titles on grass: Queen's Club, Brisbane, Wimbledon — a record that reflects consistent ability to close out tournaments on this surface.

At Grand Slam level (Wimbledon): John McEnroe has been outstanding — 66–13 (83.5%) across 79 matches. Winning more than 7 in 10 Grand Slam matches on grass is the benchmark of an all-time great on this surface.

13 finals reached on grass — won 8, lost 5 (solid 62% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on grass. 19 semifinals. 21 quarterfinals.

vs. Top 10 on grass: 10–11 (47.6%, 21 matches). Competitive against the elite, but still narrowly below .500 — closing that gap would directly elevate the overall grass court profile.

By format on grass — best-of-five: 68–13 (84.0%); best-of-three: 53–7 (88.3%). Slightly stronger in three-set contests on grass, though the five-set record is still respectable.

Best season: 1981 — 13–0 (100.0%) from 13 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.

John McEnroe assembled a remarkable 25-match winning streak on grass — a run of that length goes far beyond form and into a different level of dominance on this surface.