Last updated on .From the section Olympics

Defending champion Mahe Drysdale of New Zealand retained his Olympic title by the tightest of margins as he was given gold in the same time as Croat Damir Martin in the men's single sculls.

Martin, who won quadruple sculls silver in 2012, came back at Drysdale in the closing stages with both men stopping the clock at six minutes 41.34 seconds.

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Only a photo could separate the pair.

Czech two-time silver medallist Ondrej Synek took bronze, finishing 3.24 seconds behind Drysdale and Martin.

The win is New Zealand's second rowing gold of the Games, out of a total of eight Kiwi medals in Rio.

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