Lleyton Hewitt has been dominant on grass, posting 129–41 across 170 matches (75.9% — 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, 's-Hertogenbosch, Wimbledon, Halle, Newport — a record that reflects consistent ability to close out tournaments on this surface.

At Grand Slam level (Wimbledon): a positive 41–16 (71.9%) across 57 matches — a player who generally rises to the occasion at the Slams on grass.

10 finals reached on grass — converted 8 into titles (outstanding 80% conversion rate). Converting finals at that rate separates champions from contenders. 14 semifinals. 22 quarterfinals.

vs. Top 10 on grass: 16–15 (51.6%, 31 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: 55–20 (73.3%); best-of-three: 74–21 (77.9%). Slightly stronger in three-set contests on grass, though the five-set record is still respectable.

Best season: 2002 — 14–0 (100.0%) from 14 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.

Lleyton Hewitt assembled a remarkable 17-match winning streak on grass — a run of that length goes far beyond form and into a different level of dominance on this surface.