Buster C. Mottram holds a solid grass court record of 28–19 across 47 matches (59.6%). A winning majority across 47 matches shows consistent ability to get results on grass.

At Grand Slam level (Wimbledon): Buster C. Mottram is 12–10 (54.5%) across 22 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

By format on grass — best-of-five: 21–12 (63.6%); best-of-three: 7–7 (50.0%). Significantly better in five-set matches — a strong physical profile on grass that tends to tell as matches and tournaments progress.

Best season: 1978 — 5–1 (83.3%) from 6 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.