Queen Elizabeth II wins a first at Royal Ascot

Queen Elizabeth II surprised the crowds at Thursday’s meeting of the Royal Ascot races by wearing lilac, unknowingly defying the bookies who had laid 3-1 odds that blue would be her hue of the day.

But she was in for a surprise of sorts, too -- she became the first reigning British monarch to win the Gold Cup race when her horse Estimate crossed the finish line.

PHOTOS: Ladies’ Day at the Royal Ascot Races

Meanwhile, fashion police -- otherwise known as “style assistants” -- were cracking down this year during the annual five-day meet. The races are known for big hats and sometimes over-the-top fashion. But after things started getting a bit out of hand, fashion police have started enforcing a dress code this year. No minis, strapless dresses or bare midriffs for women. Shirts and ties de rigueur for men.

And that’s just in the grandstand. In the exclusive Royal Enclosure, women must wear hats -- the headpiece known as a fascinator isn’t good enough. And men need top hats, morning dress and black shoes.

Oh, and no ribbons or other customization of the top hats, if you please.

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