Jim McManus has found grass courts difficult, recording 30–37 across 67 matches (44.8%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar.

At Grand Slam level (Wimbledon): Jim McManus has struggled at Grand Slam level on grass: 9–15 (37.5%) in 24 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

2 semifinals on grass without yet reaching a final — consistent deep runs that show the ability to string together wins across a full draw, with the step to the final still to come. 4 quarterfinals adds further depth to that picture.

By format on grass — best-of-five: 15–15 (50.0%); best-of-three: 15–22 (40.5%). Significantly better in five-set matches — a strong physical profile on grass that tends to tell as matches and tournaments progress.

Best season: 1968 — 12–6 (66.7%) from 18 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.