Jack Oosterlaak

Justus Kinloch Ayres Oosterlaak also known as Jack Oosterlaak, was a South African athlete who competed in the 1920 Summer Olympics.

Career

Oosterlaak finished third behind Harry Edward in the 100 yards event at the British 1920 AAA Championships.
The following month at the 1920 Olympic Games held in Antwerp, Belgium, he competed in the 4 x 400-metre relay where he won the silver medal with his teammates Harry Davel, Clarence Oldfield and Bevil Rudd.