On Tuesday August 4th, Prep Baseball Washington hosted the Seattle Summer Review at Island Crest Park in Mercer Island, WA. Prep Baseball scouts evaluated high school athletes in the 2027-2030 graduating classes, with several strong showings throughout the event.

Summer events serve as an important tool for both Prep Baseball scouts and college recruiters, who will subsequently create lists of prospects to follow as they plan their remaining summer coverage. We often tend to see prospects' best showings at Summer ID events, as players are fresh off playing for their respective high schools and are in the routine that consistently playing in-game offers. Standout performances can lend invites to some of the summer's top events, including the 2026 Pacific Northwest State Games.

Earlier, we released our Quick Hits, detailing scouting notes on standout players from the event, and our Statistical Analysis, looking at leaders in major stat categories. Today, we conclude our post-event content with our Data Dive, focusing on more specific stat leaders on both sides of the baseball. For all other post-event content, click here.

Seattle Summer Review (8.4.26)

Athletic Testing

60-YARD DASH

VERTICAL JUMP

RSI JUMP

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TRACKMAN

EXIT VELOCITY (MAX)

EXIT VELOCITY (AVG.)

Exit Velocity: This metric measures the speed of the ball, measured in miles per hour, as it comes off the bat at the moment of contact.

BATTED BALL DISTANCE (MAX)

SWEET SPOT%

Sweet Spot percentage: This metric is determined by how often the player produces a batted ball during the session with a launch angle between 8 to 32 degrees.

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BLAST MOTION

PEAK HAND SPEED (AVG.)

Hand Speed: The observed speed as measured on the handle of the bat (measured six inches from the knob of the bat). Peak Hand Speed will occur prior to the moment of impact, very close to the commit time in the swing when the wrists unhinge.

PEAK BAT SPEED (AVG.)

Bat Speed: The observed speed of the sweet spot of the bat at impact. The sweet spot of the bat is measured six inches from the tip of the bat.

ROTATIONAL ACCELERATION (AVG.)

Body Rotation: A swing that has the appropriate relative contributions of body and bat rotations is an efficient and Powerful swing that maintains proper sequencing. An efficient baseball swing is one in which the body creates the initial movements, which is then transferred to the arms and out to the bat, thereby maximizing Bat Speed through this proximal-to-distal kinematic sequencing movement pattern.

VIZUAL EDGE

EDGE SCORE

The Edge Score is a comprehensive score out of 100 that takes the core-six visual skills into account, providing athletes, parents, coaches and scouts with a benchmark number for assessing an athlete’s overall visual ability. In general the higher the Edge Score, the higher chance of athletic success. Think of the Edge Score as the 'Sixth Metric' in the standard Five-Tools that make up a ball player.

The average Edge Score for the 2020 MLB Draft Class was 79.3 (of hitters who completed a Vizual Edge test). MLB players we've worked with typically show stronger scores, with elite hitters scoring consistently above 87.0 on their Edge Score.

Pitching

PEAK FB VELOCITY

EFFECTIVE FB VELOCITY AVG

Effective velocity is taking into account the velocity of each pitch, its release distance, the pitches time to the plate / hitting area, and the pitches movement.  With all of this information, Effective Velocity is allowing coaches and scouts to more accurately compare how a pitch is affecting a hitter.

PEAK FB SPIN RATE

AVG FB SPIN RATE

AVG INDUCED VERTICAL MOVEMENT

AVG HORIZONTAL MOVEMENT

CB VELOCITY

PEAK CB SPIN RATE

AVG CB SPIN RATE

SL VELOCITY

PEAK SL SPIN RATE

AVG SL SPIN RATE

CH VELOCITY

AVG CH SPIN RATE

CH HORIZONTAL MOVEMENT

+ CLICK HERE for a look at the complete statistics from the event.

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