Philippus Harco "Flip" Keegstra (20 June 1914, Amsterdam – 9 May 1991, Amsterdam) was a sailor from the Netherlands, who represented his native country as at the 1948 Summer Olympics in Torbay. Keegstra, as crew member on the Dutch Swallow St. Margrite, took the 11th place with helmsman Wim de Vries Lentsch. In 1952 Keegstra returns to the Olympics, Helsinki, in the 5.5 Metre De Ruyter. With Helmsman Wim de Vries Lentsch and fellow crew member Piet Jan van der Giessen they took the 13th place.

Sources

• "Flip Keegstra Bio, Stats, and Results". Olympic Sports. Sports-Reference.com. Archived from the original on 2014-01-04. Retrieved 2014-01-08.
• "DE KEUZEWEDSTRIJDEN VOOR DE OLYMPISCHE SPELEN" (Evening ed.). Nieuwsblad van Friesland : Hepkema's courant. 1946-06-25. Retrieved 2014-01-24.
• "Bronzen medailles voor Bob Maas en Koos de Jong" (in Dutch) (Dag ed.). Het vrije volk : democratisch-socialistisch dagblad. 1948-08-13. Retrieved 2014-01-24.
• "The Official Report of the Organising Committee for the XIV Olympiad London 1948" (PDF). 1951. Archived from the original (PDF) on 2011-07-16. Retrieved 2014-01-24.
• "OLYMPISCHE ZEILPLOEG" (Morning ed.). De vrije pers : ochtendbulletin. 1952-06-20. Retrieved 2014-01-26.
• "The Officiel Report of the Organizing Committee for the games of the XV Olympiad Helsinki 1952" (PDF). 1955. Archived from the original (pdf) on 2008-04-11. Retrieved 2014-01-26.