Statcast "Barrel" Qualification:
Introduced by MLB Advanced Media in 2016, a batted ball qualifies as a Barrel if its combination of Exit Velocity (EV) and Launch Angle (LA) historically yields at least a .500 Batting Average and 1.500 Slugging Percentage. The window begins at 98 mph (26°–30°) and expands as velocity climbs.

Magnus Effect & Atmospheric Lift:
Backspin imparts upward Magnus force opposing gravity, flattening ball descent and adding 20–45 feet of carry. High altitude at Coors Field (5,280 ft) decreases air density by ~17%, drastically reducing aerodynamic drag while slightly lessening Magnus curvature.

Ballpark Geometry Variations:
Fenway Park's Green Monster stands 37 feet tall at only 310–315 ft down the line, turning shallow line-drives into doubles while Yankee Stadium's 314-ft right field porch swallows high-arcing fly balls. Petco Park and Dodger Stadium feature expansive gaps with distinct sea-level coastal marine layers.