John Whitlinger has a competitive grass court record of 5–5 across 10 matches (50.0%). The record shows a player capable of competing here, though there is clear room to push the win rate higher. John Whitlinger has reached 1 final without yet claiming a title on grass — one of the finest margins in tennis.

At Grand Slam level (Wimbledon): John Whitlinger has yet to record a win on grass at this stage — 0–2 across 2 Grand Slam matches. Breaking through here would mark a significant step forward on this surface.

One final reached on grass, without converting it into a title. That final-round experience is valuable groundwork for going one step further next time. 1 semifinal. 1 quarterfinal.

By format on grass — best-of-five: 0–3 (0.0%); best-of-three: 5–2 (71.4%). 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: 1974 — 5–2 (71.4%) from 7 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.

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