• Justus Kinloch Ayres Oosterlaak also known as Jack Oosterlaak (15 January 1896, in Wellington – 5 June 1968), was a South African athlete who competed...
    2 KB (102 words) - 08:17, 21 October 2024
  • relay where he won the silver medal with his teammates Harry Davel, Jack Oosterlaak and Bevil Rudd. "Clarence Oldfield". Olympedia. Retrieved 8 July 2021...
    2 KB (81 words) - 09:35, 11 October 2024
  • Thumbnail for Athletics at the 1920 Summer Olympics
    Guy Butler 3:22.2  South Africa (RSA) Henry Dafel Clarence Oldfield Jack Oosterlaak Bevil Rudd 3:23.0  France (FRA) Géo André Gaston Féry Maurice Delvart...
    13 KB (72 words) - 18:45, 31 August 2024
  • Ainsworth-Davis Guy Butler  South Africa (RSA) Henry Dafel Clarence Oldfield Jack Oosterlaak Bevil Rudd  France (FRA) Géo André Gaston Féry Maurice Delvart André...
    23 KB (663 words) - 07:39, 9 August 2024
  • Rank Athlete Nation Time Notes 1 Jack Oosterlaak  South Africa 11.0 Q 2 George Davidson  New Zealand 11.1 Q 3 Agne Holmström  Sweden 4 Fritiof Andersen...
    23 KB (574 words) - 06:38, 23 September 2024
  • Thumbnail for Athletics at the 1920 Summer Olympics – Men's 200 metres
    Rank Athlete Nation Time Notes 1 Harry Edward  Great Britain 22.8 Q 2 Jack Oosterlaak  South Africa 23.2 Q 3 Sven Malm  Sweden 23.3 4 Mario Riccobono  Italy...
    19 KB (459 words) - 02:29, 5 August 2024
  • Thumbnail for Athletics at the 1920 Summer Olympics – Men's 4 × 400 metres relay
    Griffiths, Robert Lindsay  Great Britain Henry Dafel, Clarence Oldfield, Jack Oosterlaak, Bevil Rudd  South Africa Géo André, Maurice Delvart, André Devaux...
    5 KB (133 words) - 21:04, 9 August 2024
  • Thumbnail for 4 × 400 metres relay
    Ainsworth-Davis Guy Butler  South Africa (RSA) Henry Dafel Clarence Oldfield Jack Oosterlaak Bevil Rudd  France (FRA) Géo André Gaston Féry Maurice Delvart André...
    95 KB (3,139 words) - 16:08, 24 September 2024
  • Thumbnail for South Africa at the 1920 Summer Olympics
    Louis Raymond — Tennis, Men's singles Henry Dafel, Clarence Oldfield, Jack Oosterlaak and Bevil Rudd — Athletics, Men's 4 × 400 m relay Henry Kaltenbrunn...
    28 KB (519 words) - 16:27, 24 October 2024
  • Thumbnail for 4 × 400 metres relay at the Olympics
    Ainsworth-Davis Guy Butler  South Africa (RSA) Henry Dafel Clarence Oldfield Jack Oosterlaak Bevil Rudd  France (FRA) Géo André Gaston Féry Maurice Delvart André...
    25 KB (898 words) - 05:03, 10 November 2024
  • where he won the silver medal with his teammates Clarence Oldfield, Jack Oosterlaak and Bevil Rudd. They completed the race in a time of 3 minutes and...
    2 KB (155 words) - 09:44, 3 June 2023
  • Thumbnail for Athletics at the 1920 Summer Olympics – Men's 4 × 100 metres relay
    Fritiof Andersen, August Sørensen, Marinus Sørensen (DEN) 43.8 Q 3  Jack Oosterlaak, Willie Bukes, Henry Dafel, Francis Irvine (RSA) 44.4 4  August Waibel...
    7 KB (161 words) - 20:56, 9 August 2024
  • Ainsworth-Davis Guy Butler  South Africa (RSA) Henry Dafel Clarence Oldfield Jack Oosterlaak Bevil Rudd  France (FRA) Géo André Gaston Féry Maurice Delvart André...
    79 KB (243 words) - 12:21, 24 October 2024
  • Thumbnail for Ted Terry
    heat, 2 yards behind Oosterlaak, who won in 10.4 secs. In a thrilling final, Bukes led from the start and drew away, with Oosterlaak, the favourite, coming...
    40 KB (5,056 words) - 05:24, 11 October 2024