Billy Martin has a competitive grass court record of 21–24 across 45 matches (46.7%). The record shows a player capable of competing here, though there is clear room to push the win rate higher.

At Grand Slam level (Wimbledon): Billy Martin is 9–12 (42.9%) across 21 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

vs. Top 10 on grass: 1–4 (20.0%, 5 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: 9–12 (42.9%); best-of-three: 12–12 (50.0%). Slightly stronger in three-set contests on grass, though the five-set record is still respectable.

Best season: 1977 — 5–3 (62.5%) from 8 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.