Jonathan Canter has found grass courts difficult, recording 9–15 across 24 matches (37.5%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar. Claimed 1 title on grass: Melbourne-2.

At Grand Slam level (Wimbledon): Jonathan Canter has struggled at Grand Slam level on grass: 1–7 (12.5%) in 8 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

One final reached on grass, converted into a title — a perfect finals record on this surface. 1 semifinal. 1 quarterfinal.

By format on grass — best-of-five: 1–7 (12.5%); best-of-three: 8–8 (50.0%). 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: 1985 — 7–5 (58.3%) from 12 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.

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