Major season is over. Can you believe it? We now have eight months until the 2017 Masters.

Jimmy Walker took his first major over Jason Day, which capped only the third season since 1969 -- and fifth ever -- with four first-time major winners. The last time it happened was in 2011, when Charl Schwartzel, Rory McIlroy, Darren Clarke and Keegan Bradley all won their first. Before that, it was Mike Weir, Jim Furyk, Ben Curtis and Shaun Micheel.

The first-timers this year were no joke, either. Three of the four were ranked inside the top 20 in the world when they won and two were inside the top 10. Walker is the lone golfer who was somewhat of an outsider.

"I think it shows that everybody out here playing is really good, and everybody's got a chance to win," Walker said on Sunday. "I think the guys that, you know, Henrik [Stenson], he's been around forever: FedEx Cup Champion, won a lot of golf tournaments, great player. Dustin [Johnson] ... I mean, he's a great player, hits it a freaking mile. Everybody expects good things from guys like that. To see all that come together is just a matter of time, I think.

"For me, it was a matter of time for me, that's what I felt about myself, and winning something like this. It sure makes me look forward to more. But I think it just shows how deep golf is, I really do. It's deep. Anybody can win."

This is true, and now the past five major winners have proven it. Jason Day took his first major this time last year (and came within a couple strokes of defending that title). Then Danny Willett, Stenson, Johnson and Walker consecutively. That means the "Big Three" of Day, Jordan Spieth and Rory McIlroy went major-less in 2016. That won't be the last time that happens.

"It shows you how deep golf is right now," said Rickie Fowler, who put together his best major performance of the season but finished T33. "It's not just a handful of guys. It's 20, 30 or 40; you can go down the list. There are guys in contention who are ranked outside the top 50 in the world. It's a fine line. It's very cool to see the guys who have won this year."

The 48th-ranked player coming into a major after missing the cut at three of the past four and winning it by one over the best player in the world in the best field in major history? Yeah, I would say anybody can win.

1. Jimmy Walker is a worthy champion. Five major wins is going to be the new 10 with how deep these fields are nowadays. Walker was lights out in the end, and he didn't wilt even though he (literally) had the No. 1 player in the world staring him down all day. There are major championships that are backed into, and then there are major championships that are earned. This one was certainly the latter.

Walker went wire-to-wire at the deepest field in golf as the lowest-ranked player since 2011 to win a major. Big-time stuff from our newest major champion.

2. Jason Day is a monster. What a major year for Day. He finished an aggregate of 9 under in all four majors and had three top 10s. That's incredible. He fell short this week but still somehow stole the ending with that outrageous eagle on the 72nd hole. He's a proper No. 1 player: never quits tournaments, never mails it in, always keeps fighting and gives himself chance after chance after chance. I'm not sure he has the most talent of anyone in the world, but he distributes the talent he does have most successfully. More major wins are certainly on the horizon.

3. It took a while, but we finally got a big-time major. All four majors had an identity this season. Jordan Spieth's meltdown at the Masters. Johnson's back-nine heroics at the U.S. Open. The duel at Royal Troon between Stenson and Phil Mickelson. This PGA Championship took the longest to develop, but those last two holes were outrageously good. It took a miracle eagle from the No. 1 player on the planet to give this baby some soul, but Walker will be glad in 10 years he had to get after it a little bit at the end for the win. Another memorable trophy.

4. Brooks Koepka solidified his Ryder Cup status. Koepka toughed out a top-five finish after going into the week not thinking he was going to play at all. He said afterward his ankle was numb after walking 36 holes on it on Sunday. With the top-five finish, he secured himself a slot on the U.S. Ryder Cup team because even if he doesn't make it into the automatic top eight, Davis Love III is going to pick him. Huge week for Koepka.

5. A 61 or 62, Phil? One of my favorite parts of the tournament was Phil Mickelson cruising around Baltusrol on Sunday with his two black gloves crowing that a 61 or 62 was out there when nobody broke 65 in the final round. Part of me things Lefty was just trying to put a hex on the major championship record of 63 because he wants to shoot a 62 at next year's Masters to hold it. The other part of me thinks he's just crazy and will say anything because he's Phil Mickelson.

6. Daniel Summerhays gets in the Masters. Wait, who? Daniel Summerhays. You know, the guy who was T8 at the U.S. Open and third at this PGA Championship. The BYU grad and brother of a PGA of America pro who also played in the event this week. The 2017 Masters will be his first. Pretty sweet deal.

7. What do we make of Jordan Spieth's year? Here's his take. Spieth finished T13 this week but never really could will himself into contention. That was mostly the story of his final three majors after blowing the Masters in April.

"I was a couple swings away from winning [the Masters]," Spieth said. "If I close that one out then it's one of the best major seasons I'll ever have. I'm not going to hang my head low on it. I made the cut in all of them, which obviously isn't the goal for me. I contended in one and had a chance to win. I learned a lot from that experience. Just wanted to put myself in that chance again. Wasn't quite able to do so from here to there but not a bad showing in the four majors this year.

"My goal at the beginning of the year was to have a chance to win at least two of them. [I] didn't quite get there, but I can cap off the finish to this year strong if I play strong at the Ryder Cup. That's going to feel like a major for me."

8. Hideaki Matsuyama and Henrik Stenson couldn't putt this week. Matsuyama and Stenson finished No. 1 and No. 2, respectively, in strokes gained from tee to green; they were also Nos. 79 and 77, respectively, in putting. If either had been merely average with his putter, he would have run away with the tournament.

9. The Sunday finish was miraculous. I am giving a standing ovation to the grounds crew at Baltusrol for somehow saving us all from a Monday morning finish. I have no idea how they did it with the amount of rain the course took this week, but the players got a proper final round even with preferred lies. It certainly could have gotten silly, but the crew kept things under control and delivered a great course. Well done.