In a game with one of the biggest learning curves in sports, rookies have surprisingly been doing well. Baseball has had a number of young players develop into stars in recent seasons.

To fully comprehend this shift in the game, we must first examine how players make it from being a prospect in the minor leagues to making it to the show.

From Prospect to Pro

Major League Baseball is vastly different from the NFL and NBA when it comes to rookies. While there is no limit to how long a player must wait to be signed professionally, baseball still averages the oldest rookies of all three of the major sports.

That is due to the way the game is played. To be successful in the majors, most players need to be at their peak of maturation, normally around 24 to 25 years old. Being fully developed allows baseball players to utilize their bodies to the fullest.

Unlike the NFL or NBA where players can rely on physical talent alone, baseball requires a honed set of skills. It doesn’t matter if you can hit a fastball 450 feet. If you can’t handle a breaking ball, you will fail in the majors.

That is why baseball has such an advanced minor league system. The combination of developing a player’s physical and mental capabilities to be successful in the majors takes time. The average rookie last year was 24 years old, giving credence to the time it takes to develop. However, what happens when players start breaking the mold, and advance beyond our wildest dreams?

2012: just the beginning

The Rookie of the Year award has always been the bar that rookies strive for. However, not all ROY winners are made the same.

From 2007-2011, ROY winners averaged 3.1 wins above replacement (WAR). Baseball Reference rates that as better than an average starter in the majors, proving that the ROY winners were truly something special.

Many have noted the increase of rookie production in the past few years, and the numbers certainly support that. From 2012-2016, ROY winners have averaged 5.4 WAR. That is a staggering jump in production, and evidence of a new age dawning in baseball.

This trend really began in 2012 with a pair of ROY winners: Mike Trout and Bryce Harper. Both players had been premium draft picks for their respective teams, but it was Harper that was seen as the next big thing in baseball.

Some players fold under such lofty expectations, but Harper flourished. He put up 5.2 WAR in his rookie year, topping all NL ROY winners since 2007 by at least 1.3 WAR. If Harper signaled a shift in the way rookies played, Trout was the zenith of their potential.

No one saw what Trout had in store. At 20 years old in his rookie season, he blew away the competition with a staggering 10.8 WAR. That is MVP type production, and earned him a second place finish in the 2012 AL MVP voting. While it may be unfair to compare Trout to other rookies due to his Hall of Fame trajectory, his fast start should not be diminished. Even so, Trout and Harper were only the beginning, setting the stage for other acts to follow.

continued success

Since that fateful 2012 season, the way we view rookies has never been the same. That’s not just Trout and Harper’s doing either.

The rookies that have followed have helped carry their success into new seasons. Seemingly gone are the days when players like Dustin Pedroia could put up 3.9 WAR in 2007 and bring home the ROY award. Pedroia’s 2007 season would have been good enough for the third most WAR by a rookie in 2016. A new type of player is taking over the majors, and they are raising the bar of rookie performance.

Never before have we seen such young players perform so well so quickly. The NL has had two ROY winners in a row post seasons of 6.0 WAR or higher: Kris Bryant in 2015 (6.1 WAR) and Corey Seager in 2016 (6.0 WAR).

From 2007-2011, five of the 10 ROY winners posted WAR over 3.5 in their rookie years. From 2012-2016, eight of the 10 ROY winners have posted WAR over 3.5 in their rookie years. ROY of course is not the be all end all of the story of growing rookie dominance.

We saw 11 rookies post seasons of 2.5 WAR or higher last year, compared to the 2007 season in which only six rookies reached the 2.5 WAR milestone. Players like Nolan Arenado, Trea Turner, Francisco Lindor and Gary Sanchez all had rookie seasons of at least 3.0 WAR, and still weren’t able to bring home the ROY award. It will only become more difficult to bring home the ROY award with the rise in production of rookies.

The way the game is being played is changing. Younger, less-experienced players are taking over the game. Don’t let their lack of experience fool you. These young studs will dominate the game for years to come. The youth movement in baseball is upon us, and it doesn’t show any signs of slowing down soon.

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