About Jack Oosterlaak
Lived 1896 – 1968 (aged 72). Jack Oosterlaak was a South African athletics competitor.
Justus Kinloch Ayres Oosterlaak also known as Jack Oosterlaak (15 January 1896 – 5 June 1968), 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.
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
People in Jack Oosterlaak's life
Named in this biography and alive at the same time
Related people
Same field, nearest in time
Contemporaries
People whose lives overlapped Jack Oosterlaak's
Frequently asked questions
Who was Jack Oosterlaak?
South African sprinter (1896-1968)
When was Jack Oosterlaak born?
Jack Oosterlaak was born on 15 January 1896 in Wellington.
When did Jack Oosterlaak die?
Jack Oosterlaak died on 5 June 1968 in Pretoria.
What was Jack Oosterlaak's occupation?
Jack Oosterlaak was an athletics competitor.
What nationality was Jack Oosterlaak?
Jack Oosterlaak was South African.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Jack Oosterlaak. https://biography.guide/jack-oosterlaak/
MLA: "Jack Oosterlaak." Biography.guide, https://biography.guide/jack-oosterlaak/.
Chicago: "Jack Oosterlaak." Biography.guide. https://biography.guide/jack-oosterlaak/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
Page generated 2026-09-27 05:30 UTC