List of Grand Slam singles champions in Open Era with age of first title

Columns: Age | Name | Tournament | Date of birth | Date of first title | Notes
24 years , 292 days | Guillermo Vilas | 1977 French Open | 17 August 1952 | 5 June 1977 | 1st of 4 | 23 years , 159 days | Vitas Gerulaitis | 1977 Australian Open ( December ) | 26 July 1954 | 1 January 1978 | 20 years , 205 days | John McEnroe | 1979 US Open | 16 February 1959 | 9 September 1979 | 1st of 7 | 26 years , 13 days | Brian Teacher | 1980 Australian Open | 23 December 1954 | 5 January 1981 | 23 years , 273 days | Johan Kriek | 1981 Australian Open | 5 April 1958 | 2 January 1982 | 1st of 2 | 17 years , 293 days | Mats Wilander | 1982 French Open | 22 August 1964 | 11 June 1982 | 1st of 7

Example questions:
How many tennis Majors did the second oldest Grand Slam champion win ? | What is the date of first title for the Grand Slam champion who beat Željko Franulović in 1970 ? | What country is the Grand Slam Champion born on 9 August 1938 from ? | What is the name of the tennis stadium that held the 1972 Men 's French Open ?

Answers:
23 | 7 June 1970 | Australia | Kooyong Stadium