This time last year, golf was basking in the "Era of McIlroy," as Rory entered 2015 off back-to-back major victories. The Irishman was the sport's new emperor; this own publication deemed McIlroy "the model for greatness."
McIlroy's fame cast a major shadow over his fellow competitors. From this darkness emerged a fledgling Jordan Spieth.
By no means was Spieth an unknown entity heading into 2015. He finished second at the 2014 Masters, had appeared in the Presidents Cup and Ryder Cup, and was ranked 13th in the world rankings.
Conversely, he was far from a sure-fire superstar; in 64 career PGA Tour starts before the 2015 Valspar Championship, Spieth had just one victory.
What a difference a year can make.

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In the last 52 weeks, Spieth has:

And perhaps most shocking of all...
The same age as most college seniors.
It will be interesting to check back with Spieth this time next season. After all, you never know what can happen in a year.