Robert Lutz has an impressive grass court record of 87–44 across 131 matches (66.4% — strong). A win rate of that calibre over 131 matches is a reliable indicator of genuine quality on this surface. Claimed 1 title on grass: Manchester.

At Grand Slam level (Wimbledon): a positive 33–21 (61.1%) across 54 matches — a player who generally rises to the occasion at the Slams on grass.

4 finals reached on grass — won 1, lost 3 (25% conversion) — capable of reaching finals consistently, with room to improve at the decisive moment. 6 semifinals. 13 quarterfinals.

vs. Top 10 on grass: 0–3 (0.0%, 3 matches). Top 10 opponents have represented a clear ceiling on grass; addressing that deficit is the single biggest lever for improving the overall record here.

By format on grass — best-of-five: 46–27 (63.0%); best-of-three: 41–17 (70.7%). Slightly stronger in three-set contests on grass, though the five-set record is still respectable.

Peak season: 1969 — 20–6 (76.9%) from 26 matches. That year captures the ceiling of what Robert Lutz can do on grass when performing at their best and represents the standard to aim for.