Only three players completed boxed set - Doris Hart, Margaret Court and Martina Navratilova.
Honorable mention: If player wins all 4 majors, olympic gold and year-end tournament in same year, it’s called super slam. In 1988, Steffi Graf achived a non-calendar year super slam. In 2021, Diede de Groot achived this feat in women’s wheelchair singles.
Oh my! Thank you! This is so wonderful. I was asking for the “top” part of your answer but it was great fun reading all of it.
It strikes me that for women there is consistency in the champions across singles and doubles. That seems less so for men. My not-stats impression has always been that singles and doubles are very different for the men and also that the men withdraw from doubles when they are doing well in the singles arm of a tournament. Perhaps that happens less amongst the women.
Again, this is fascinating and I thank you. 🙏