I think I'll go pitch-by-pitch as if I were watching this LIVE:

First thing I noticed is that Withrow comes from the Nolan Ryan/Chad Billingsley school of looking down before delivering each pitch.  It's a crisp, drop-and-drive delivery that I absolutely love.

Batter 1:

First ball went into the dirt (probably overthrown).  Next was a fastball that just caught the edge of the strike zone on the outside corner.  Could have been called a ball but hey.  Third pitch was a WICKED 11-5 curve (beautiful shape) again on the corner for a strike.  Super pitch!  Now a heater that was left up and fouled away.  STRIKE 3 FASTBALL SWINGING.  Withrow was living on the corner during this AB very effectively.  I'd estimate he was in the 95-96 mph range.

Batter 2:

Wow, that curveball REALLY got away from Withrow there.  As Eric mentioned earlier, he obviously lost the grip on it.

Batter 3:

Again, Withrow working away from hitters with a fastball up and out of the zone.  Another fastball, this one with late movement inside for a strike.  If he keeps the ball down, he'll be extremely tough, especially on RHH.  From the stretch, he uses a slide step similar to Kershaw and seems to check down the runner pretty good.  Fastball up for a ball.  Ooh, next fastball has almost BELISARIO-LIKE movement but it's too far inside.  Now a perfectly placed LASER on the outside for a swinging strike.  THEN ANOTHER ONE FOR A SWINGING K.  This guy was totally overmatched.

Batter 4:

Ever since that curve got away, he's been PURE HEAT.  This one was inside.  Paints the corner on the next pitch, maybe took a little bit off.  WHOA, that was either a nasty SLIDER or Max Ramirez just swung at a fastball with some major league tailing action.  Power curve gets away from Ellis allowing the runner to advance to 2nd.  HOLY SHIT WHAT A FASTBALL TO K RAMIREZ.  That HAD to be upper 90s.  No freaking chance.

This.  Was.  Awesome.

For the longest time, it seemed like last year's 11th rounder was the furthest away from establishing himself as an elite pitching prospect in the organization. Eovaldi got knocked around pretty heavily, in fact, in his first 1 1/2 months at Class A Great Lakes. Was the 19-year-old Texan having a hard time adjusting to a cold weather climate or were his secondary offerings simply not refined enough for full season A ball? It's probably a little from Column A, a little from Column B. But whatever the case, he's been absolutely DOMINANT since 5/21. So dominant that he's put up a ridiculous 1.01 ERA in his last 35.2 IP. While his highly acclaimed peers, Chris Withrow and Ethan Martin, continue to struggle with command, it's been Eovaldi who's been the model of consistency of late. With his season ERA now a very good 3.90 and his K rates climbing to respectable levels, he's flirting with a Top 5 spot in a very wide open race in our Prospect Rankings.