In the semis, she was beaten 6-2 by the eventual gold medallist Sung Eun Chun, but still had a chance for bronze, where she faced another Korean, Hye Jin Jang.
But despite scoring 29-29-28 during her three sets, Naomi was blown away by the Korean, who scored a perfect 30-30-30 to secure a 6-0 victory, and with it, the bronze medal.
In the women's compound, Nat, from Oxford Archers, was in great form as she set up a quarter-final tie against Irina Markovic of The Netherlands.
Indeed, after the first two sets were level, Nat won the third, and was tantalisingly near the semi-finals as she led 5-3 going into the fifth and final set. But Markovic scored 29 to Nat's 27, and so it set up a one arrow shoot-off for a place in the last four.
Both archers shot a 9. But Markovic's was nearer the centre of the target, and it was she who went through to a semi-final against the current outdoor World Champion Albina Loginova of Russia.
Loginova won that match, but then lost in the final to Denmark's Sarah Sonnichsen. Nat, meanwhile, secured fifth place as the best quarter-final loser, to complete a great weekend.
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