Who is this Alvarado guy in Tampa? Plus, Mookie Betts, Josh Donaldson, Aaron Sanchez, and Justin Verlander.

Three of Tampa's surprise contributors, a part-time Yankee, and a post-hype prospect in Anaheim.

Is average Launch Angle such a big deal?

Is the ability to impart backspin to the ball a skill that "Carries" from year to year?

Will Randal Grichuk finally break out in Toronto? Plus a look at Kela, Pinder, Skaggs and Zimermann.

Dylan Bundy has taken us on a roller coaster. Should you buy a ticket? Plus: Robinson Chirnos, Danny Duffy, Ian Kinsler, and Rougned Odor.

How does yesterday's pitch count impact today's performance for relievers?

How much weight should we give this year's results?

More data gives us better understanding... except when it doesn't.

Our SP Matchup Tool gets an overhaul...

Is Mark Trumbo just an adjustment away from his old self?