“When I think of this being the last major of the year, it's a little bit of a sad feeling because I really thoroughly enjoy playing in majors.” -- Jordan Spieth

Insert sad face emoji.

There is a lot of big golf still to be played in 2015, but we’ll have to wait eight months for the next major. This year’s were as enjoyable to watch unfold as they were telling.

What did we learn?

Spieth is the real deal. We knew he was good, but this was confirmed the moment he won a second straight major, and a month later nearly a third, and then a month after that nearly a third again. He has an amazing ability to figure things out on the fly and never let the moment seem too big.

In the four majors, Spieth was a combined 54 under, 19 strokes lower than his closest competitor Jason Day -- who did more than half his damage at Whistling Straits, where he finished a record 20 under. Spieth’s total eclipsed the previous record of 53 under, set by Tiger Woods in 2000.

But just how good of a year has it been for Spieth -- who has four wins, including two majors, and six top-5 finishes -- when you stack it up against history? According to the number crunchers over at FiveThirtyEight, it’s one of the greatest in history. Spieth’s season ranks 12th behind six of Woods’ and five of Jack Nicklaus’ years.