Jack Oosterlaak

Jack Oosterlaak (Justus Kinloch Ayres Oosterlaak; 15 January 1896, in Wellington – 5 June 1968), was a South African athlete who competed mainly in the 400 metres.

Olympic medal record
Men’s athletics
Representing  South Africa
Silver medal – second place 1920 Antwerp 4x400 metre relay

He competed for South Africa in the 1920 Summer Olympics held in Antwerp, Belgium in the 4 x 400 metre relay where he won the Silver medal with his teammates Harry Davel, Clarence Oldfield and Bevil Rudd.[1]


  1. ^ "Archived copy". Archived from the original on 24 October 2012. Retrieved 19 January 2010.CS1 maint: archived copy as title (link)