Projecting Astros Call-Up Alex Bregman

A mere 13 months ago, the Houston Astros selected Alex Bregman with the second pick in the amateur draft. Tonight, he’ll suit up for the Astros, after he gave Houston no choice but to call him up to the show. The 22-year-old hit .311/.412/.589 in the minors this year, including a .356/.387/.685 showing during his 17-game pit stop at Triple-A. Last season, his junior one at LSU, Bergman slashed .323/.412/.535 and, unsurprisingly, had little issue adapting to life in the pros. He closed out his draft year by hitting a strong .290/.358/.408 across two levels of A-ball.

Bregman pairs exceptional contact ability with ample power and a good walk rate, making him an all-around offensive threat. Bregman owns a minuscule 10% strikeout rate as a professional, yet has still managed a .200 ISO. Very few hitters possess Bregman’s combination of contact and power.

As if that weren’t enough, Bregman also provides value through means other than his hitting. The Astros have given him time at several positions this year in anticipation of his promotion, but he’s a shortstop by trade. That suggests he could be a fine defender at just about any place further down the defensive spectrum. He’s also swiped 20 bases in his year as a professional player, indicating good (or, at least, usable) speed.

As you probably imagined, my newly re-vamped KATOH system is head-over-heels for Bregman. He’s easily the top prospect in the land according to my math. Both KATOH (which considers stats only) and KATOH+ (which also incorporates prospect ranks) peg him for more than 17 WAR over his first six years in the big leagues.

To put some faces to Bregman’s statistical profile, let’s go ahead and generate some statistical comps for the hot-hitting shortstop. I calculated a weighted Mahalanobis Distance between Bregman’s Double-A and Triple-A numbers this season, and every season at those levels since 1991 in which a shortstop or third baseman recorded at least 400 plate appearances. In the table below, you’ll find the 10 most similar seasons, ranked from most to least similar. The WAR totals refer to each player’s first six seasons in the major leagues. A lower “Mah Dist” reading indicates a closer comp.

Please note that the Mahalanobis analysis is separate from KATOH. KATOH relies on macro-level trends, rather than comps. The fates of a few statistically similar players shouldn’t be used to draw sweeping conclusions about a prospect’s future. For this reason, I recommend using a player’s KATOH forecast to assess his future potential. The comps give us some interesting names that sometimes feel spot-on, but they’re mostly just there for fun.

Very few players do all of the things Bregman does as well as he does. Everything about his stat line suggests he could be an excellent hitter. Throw in his defensive prowess, and it’s almost impossible not to see star potential in his profile. As you can see from  the case of Adam Piatt — who had very Bregman-like stat line coming up — nothing is guaranteed in the world of prospects. But they don’t make ’em much better than Bregman. He should be good in 2016, and has the chance to be something special in a couple years time.