After nine top-10s in majors prior to the 97th PGA Championship, does Jason Day's victory Sunday at Whistling Straits open the floodgates at golf's Grand Slam events?
And who is the true No. 1 in the world now after Jordan Spieth took over the top spot in the Official World Golf Rankings?
Our experts weigh in on those topics and more in the post-PGA Championship edition of Monday Four-Ball.
1. Four. Over/under on Jason Day career majors?
SportsCenter anchor Jonathan Coachman: I have to go over. Day should have four already. He is such a terrific player; the only thing Day needed to do was prove to himself that he could finish on Sunday. He did that, and in record-breaking fashion. It wouldn't surprise me if we see Day and Spieth battling it out for many years to come. Day has another gear. Now he knows it works completely in the fast lane.
ESPN.com senior golf analyst Michael Collins: Even money. That's the number I see him winning in his career. Five would be too many, three would be too few. At his age (27), Day will get plenty more chances if he stays healthy. The problem is the talent level around him will make it a very difficult task.
ESPN.com senior golf writer Bob Harig: Under. It's hard to win majors, as Day is so obviously aware. As good as this victory was at the PGA Championship, asking him to win three more with Jordan Spieth and Rory McIlroy in the mix is asking a lot. He might very well do it, but if pressed, I'm going under.
ESPN.com senior golf writer Jason Sobel: Under. Not sure if anyone else has noticed, but it has become perhaps tougher than ever to win majors these days, with so many talented young players. This won't be Day's last major win, but let's not get too carried away just yet.
2. Toss out the rankings. Who's the No. 1 player in the world right now?
Coachman: This is harder than it seems. With all due respect to Rory McIlroy, I believe it's between Spieth and Day. Their records the past two months are amazing. Both were great at the U.S. Open and The Open. Day was great winning in Canada. And Spieth was really good winning at the John Deere. And then this battle at Whistling Straits. I have to go with Spieth because going back to December, he has been winning consistently. But he needs to keep showing up or Day will take the crown.
Collins: Jordan Spieth. I couldn't imagine an argument any other way. If you were going to have one guy play golf for your life, and I got first pick, I've got Jordan. You're going to die.
Harig: No question it's Jordan Spieth. Rory McIlroy was the victim of his ankle injury, costing him starts in three tournaments, two with tons of ranking points. Who knows how history may have been altered had he been there for those events? But the fact is, Spieth has won four times this year. He's got six victories dating to November. He won two majors, finished runner-up in a third and missed a playoff by one stroke in the other. There should be no argument.
Sobel: No, let's not toss out the rankings. Let's leave them right where they are, because they're dead-on: Jordan Spieth is the No. 1 player. Is he the best? Well, a healthy Rory McIlroy might soon contest that notion, but Spieth certainly deserves that number in front of his name.
3. He won two of the four majors. How does Jordan Spieth's major championship season stack up among the best in history?
Coachman: I don't like to compare different time periods. But in the past 20 years, this to me is in the top three. Two wins, a tie for fourth and a second is about as good as you can get. And in an era where there are so many more great golfers, these results are fantastic. Tiger Woods in 2000 will probably never be matched, but Spieth gave it his best shot. Just amazing.
Collins: He's got Tiger's 2000 majors score of 54 under beat by a shot. Mike drop. Win two, miss a playoff by a shot, finish second. When history looks back on this season, it will rank inside the three greatest ever.
Harig: If winning is the thing, then it's not as good as Ben Hogan in 1953 and Tiger Woods in 2000. Hogan won all three majors he played. Woods won three in a row and was fifth at the Masters. He won the U.S. Open (15 shots) and The Open (8 shots) by huge margins, then captured the PGA in a stirring playoff. But Spieth's is next: 1-1-4-2. Only four players beat him in the majors this year. Incredible stuff.
Sobel: It's definitely top 20, probably top 10 and possibly top five. Wherever it does rank, it has to be tied with Tiger Woods' 2005 season. Spieth finished 1-1-4-2; Woods was 1-2-1-4 that year.
4. How did Whistling Straits hold up as a major venue and will it be a worthy setting for the Ryder Cup in 2020?
Coachman: Whistling Straits is fantastic, a course you can clearly score on if you drive it straight. But there were also several high scores for those who can't. That's what you want. Spieth said Day put on a driving show and he was rewarded for that. As a fan, that's what I want in a major championship venue and that's what we got. This will be a fantastic course for a Ryder Cup and I can't wait.
Collins: Great setup for the PGA Championship. They got it right. Is this a great match-play course? Not if they play it from the tips. I'd rather we play somewhere where the logo wasn't wind. Every course is not great for match play. They're going to have to change a lot to make this a great venue for it.
Harig: It offers a spectacular setting and plenty of birdies, but 20 under par is probably not what you want in a major venue. Circumstances -- mainly a lot of rain early in the week and again on Friday -- had a major role in that. As for the Ryder Cup, the drawback is how fans won't be able to get on both sides of many of the holes. The closed-in setting at other Ryder Cups could very well be missing.
Sobel: I really enjoyed the course for a third time as PGA host, but not sure I love it for a Ryder Cup. I'd prefer a Ryder Cup on a more intimate venue, where sound waves ripple across holes. At the Straits, with holes detached from each other and spectators unable to get too close due to the mounding, it won't be as exciting as other courses.