Masters 2015: Jordan Spieth says he played 'extremely well'

Jordan Spieth believes he played "extremely well" on the first day of the 79th Masters at Augusta to take the lead eight-under par.

Spieth, 21, is yet to win a major but arrived in Georgia in fine form, with a win and two runners-up places in his last three PGA Tour events.

The American became the first man since Woods in 2011 to record nine birdies in a round, to open a three-shot lead with an eight-under 64.

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