What is Release Point? Definition and Examples
Release point is the three-dimensional coordinate where a pitcher's hand lets go of the baseball, captured in feet by Statcast and used to evaluate arm slot, command consistency, and pitch deception.
What is Release Point?
Release point is the (x, y, z) coordinate in feet where a pitcher's hand releases the baseball, measured by Statcast at the instant the ball separates from the fingers. The horizontal coordinate (release_pos_x) tells you which side of the rubber and how far off-center the arm operates. The vertical coordinate (release_pos_z) tells you release height — a proxy for arm slot. The depth coordinate, usually reported separately as release extension, tells you how far in front of the rubber the ball leaves the hand. Together these three numbers define the geometry of every pitch a pitcher throws.
How Release Point is Measured
Hawk-Eye's 12-camera array at every MLB park triangulates the ball's position the moment it leaves the pitcher's hand, captured to roughly 0.01-foot precision (about an eighth of an inch). Release height is reported relative to field level, release side relative to the center of the rubber (negative values are third-base side from the catcher's view, positive values first-base side), and release extension as forward distance from the front edge of the rubber. The combination of release coordinates and pitch trajectory lets Statcast compute vertical and horizontal approach angles, perceived velocity, and pitch tunneling distance.
Worked Example
Tyler Rogers of the Giants is the most extreme low-slot pitcher in MLB — he releases the ball from about 1.5 feet off the ground and roughly 4 feet to the first-base side, a true submarine delivery. Spencer Strider releases his four-seam fastball at about 5.7 feet high with a slightly cross-body angle. Tarik Skubal averages a 6.0-foot release height with 6.7 feet of extension, meaning his pitches actually leave his hand only 53.5 feet from home plate — shrinking the effective reaction window for hitters and making his 96 mph fastball play closer to 99 mph perceived velocity. Chris Sale, throwing from a low three-quarter slot, releases at about 5.4 feet high but a full foot further toward third base than most lefties, creating a brutal approach angle on his slider against right-handed hitters.
Why Release Point Matters
Hitters time their swing off the release point — it's the first visual anchor they have. Pitchers who maintain a tight, consistent release point across their entire arsenal force hitters to commit before seeing pitch shape, which is the foundation of pitch tunneling. Pitchers who vary release by even 2–3 inches between pitch types unintentionally tip their offerings. Front offices use release-point consistency as both a command indicator and an early injury flag: drifting release height or side mid-season often predates UCL or shoulder problems by months. Pitching labs at Driveline, Tread Athletics, and most MLB clubs map a pitcher's ideal release point and rebuild deliveries that drift away from it.
Limitations and Misconceptions
Release point alone does not equal arm slot. Two pitchers with identical 5.7-foot release heights can have very different arm angles because torso lean and stride length distort the relationship between hand position and shoulder mechanics. Statcast's release-point measurement also carries roughly one inch of pitch-to-pitch noise from random measurement error, so reading too deeply into a single-game drift is a mistake. And a low release point is not automatically deceptive — Tyler Rogers is unique because almost no one else throws from there.
Related Terms
In Legends Deck
Release point consistency feeds the "command" sub-rating on every Legends Deck pitcher card. Pitchers with tight release clusters earn command bonuses that reduce walk probability and improve called-strike rates in simulated at-bats. Extreme release points — submariners like Tyler Rogers, low-slot lefties like Chris Sale — generate platoon-split multipliers, so they punish same-handed hitters harder than their raw stats suggest.