Start, stop, and go delivery, early hitch into leg lift; full arm circle, long path to three-quarter slot, quick arm, generates extension; finishes easy, some mild violence; athletic, fields his position well, shows poise on the mound
Plus-plus velocity, easy out of hand; slight arm-side run, variable movement; inconsistent command, loses it for stretches; downhill pitch, will work it up and in
Natural feel to spin it, plus bite with sharp, late break; sequences well with his fastball, tipped one but consistent arm speed overall, swing-and-miss offering that expands the zone; presently inconsistent but has the feel, plus projection
Inconsistent, lacks natural feel for the pitch, command not there, inconsistent arm speed, slows it down; moderate tumble, projection to fringe utility based on athleticism, lacks feel to develop into average range
Alvarez works off a plus-plus heater, using his lanky body to his advantage by creating extension and a quality downhill angle to attack with it. He sequences it well with his slider, which flashes as a plus pitch with swing-and-miss potential. The changeup needs a good bit of work to develop utility, though his athletic delivery offers some cause for optimism that it improves to become a fringe-average pitch. He showed a couple curveballs in the second start, but neither featured great shape or finish. He's still learning how to harness his body, and it shows with occasional bouts of command inconsistency.
Alvarez has front-line potential, but more likely profiles as a heavy fastball-slider type whose future role will be tied tightly to the development of a third pitch to keep lefties honest.