Pieter Aldrich holds a solid grass court record of 12–8 across 20 matches (60.0%). A winning majority across 20 matches shows consistent ability to get results on grass. Claimed 1 title on grass: Newport.

At Grand Slam level (Wimbledon): Pieter Aldrich is 2–2 (50.0%) across 4 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

One final reached on grass, converted into a title — a perfect finals record on this surface. 2 semifinals. 2 quarterfinals.

By format on grass — best-of-five: 2–2 (50.0%); best-of-three: 10–6 (62.5%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on grass.

Best season: 1990 — 5–0 (100.0%) from 5 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.

Pieter Aldrich recorded a notable 5-match winning streak on grass — a run that demonstrates consistency across consecutive draws on this surface.