=== Fastball ===

Is throwing a legit 93-95 MPH, even humping up to 95-96.  The ball gets on hitters quickly out of his hand. 

Comes sidearm -- actually from various sidearm angles -- so that the pitch comes in on a comfortable hitting plane for right hand hitters.  Funky delivery causes Perez to be wild in the strike zone.

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=== Curve ===

Tight spin, two-plane (dropping) pitch that Perez sells with good arm action.  81 MPH leads to outstanding change-curve action with hitters way out in front.  RHB's have all kinds of problems with the pitch; LHB's are dead before they start.

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=== Confidence ===

On June 29 against the Red Sox, Perez worked LH Adrian Gonzalez to a 2-2 count, snapped off a curve and practically walked off the mound while the ball was in flight.  He's pitching with all sorts of confidence, intending every pitch to get lots of the plate, having fun out there now that his stuff is back.

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=== Angles ===

Perez' natural angle is fairly sidearm, but he also enjoys dropping down Laredo for a near-submarine pitch, and will come over the top at times. He's been pitching a long time, and is comfortable not only throwing strikes but also in throwing them from various arm slots.

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=== vs LHB's ===

As long as Perez is executing these pitches, he will devastate left hand hitters, end of story.  A LOOGY does not have to be used for one batter; in today's game he can be brought in when 2 of 3, or 2 of 4, MOTO hitters are left handed.

In this role, as long as Perez is healthy, he can help a pennant contender.

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=== vs RHB's ===

Jury is out.  

Perez' fastball is one-plane, sweeping across the plate and in to RHB's.  Smart RH hitters simply take clean pepper swings and square the ball up to CF and RF with ease.  Perez' 95 MPH in this case often simply supplies the power for sharp doubles down the RF line and into both gaps.

We don't say that Perez will never get any RHB's out, but it's possible to envision righties batting .350 against him.  His success against RHB's remains to be seen.

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=== Prospectus ===

Oliver Perez right now IS pitching like a top-flight Left Hand One Out Guy (LOOGY).  He's got the potential to pitch setup ... for me that would be a wait-and-see proposition.  Guess here is that his fastball will be a little too hittable against righties.

If the Mariners plan to compete in 2013, it says here that he is definitely worth a roster spot as a situational lefty.   With Wilhelmsen, Furbush, Pryor and Capps hitting on eight cylinders, using Perez as the #5 reliever for situations could be a mouthwatering scenario.

Failing that, if they showcase him over the next month and sell his LH-on-LH numbers to contending clubs, maybe they'll have a trade market for him.

Cheers,

Dr D