Ben Ainslie clinched his fourth gold medal in successive Games to become the most decorated sailor in Olympic history.
The 35-year-old, who also won silver in 1996, overtakes Dane Paul Elvstrom, who won four golds up to 1960.
Britain's Ainslie came ninth in a tense Finn medal race to edge long-time regatta leader Jonas Hogh-Christensen of Denmark into silver.
He was awarded his gold medal in front of cheering crowds in Weymouth.
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