John Marshall at the Olympics |
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Event |
Position |
Result |
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 Melbourne 1956 - Swimming | |||||
| 200 m butterfly M | Final | 5 | 2.27,1 | ||
| Round 1 | 2 | 2.26,8 | q | ||
| Helsinki 1952 - Swimming | |||||
| 1500 m freestyle M | Final | 8 | 19.53,4 | ||
| Round 1 | 2 | 19.09,2 | q | ||
| 400 m freestyle M | Semifinal | 4 | 4.50,3 | ||
| Round 1 | 2 | 4.46,8 | q | ||
| 4x200 m freestyle M | Round 1 | 3 | 9.01,4 | ||
| London 1948 - Swimming | |||||
| 1500 m freestyle M | Final |  | 19.31,3 | ||
| Semifinal | 1 | 19.53,8 | Q | ||
| Round 1 | 1 | 20.01,1 | Q | ||
| 400 m freestyle M | Final |  | 4.47,4 | ||
| Semifinal | 2 | 4.50,0 | Q | ||
| Round 1 | 2 | 4.51,4 | Q | ||
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| John Marshall may have participated in more Olympic events that are not listed above, but any medals won are already included. | |||||
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| This information about John Marshall is based on the official Olympic reports and the Olympian Database. |
 
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Olympics |
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Future Olympics |
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