Youngest Grass Court Title Winners

Boris Becker leads the Open Era list for Youngest Grass-Court Title Winners after winning Queen's Club 1985 at 17 years and 200 days using tournament-week age. TennisMyLife also lists his Queen's Club title at 17 years and 200 days, and Ultimate Tennis Statistics records the event as an ATP 500 grass-court tournament beginning on 10 June 1985. In that final, Becker defeated Johan Kriek 6-2, 6-3, capturing the first Grand Prix title of his career just three weeks before his historic Wimbledon breakthrough. Contemporary reports note that the 17-year-old produced 11 aces and finished the match in just over an hour. Becker then backed it up at Wimbledon 1985, where he won at 17 years and 214 days, defeating Kevin Curren 6-3, 6-7, 7-6, 6-4. That made him the youngest men's Wimbledon champion in history, as well as the first unseeded player and first German man to win the title.

Bjorn Borg and Pat Cash are the next youngest grass-court champions in the set, both at 17 years and 214 days. Borg won Auckland 1974 against Onny Parun 6-4, 6-3, 6-1, while Cash won Melbourne 1982 over Rod Frawley 6-4, 7-6; ATP's bio also notes Cash as the youngest Victorian Open champion in Melbourne at the same age.

The record is built around early wins on grass, with Becker's Queen's Club and Wimbledon double setting the Open Era benchmark and Borg and Cash filling the next spots on the list.