Pro Basketball Shot & Arc Trajectory Lab
Simulate true 3D projectile trajectories, hoop entry angles, and perimeter floor spacing across WNBA and NBA line dimensions—inspired by Fever & Pacers playmakers.
3D Half-Court Trajectory & Spatial View
WNBA Regulation CourtThe Physics of Pro Floor Spacing
When Tyrese Haliburton and Aaron Nesmith of the Indiana Pacers sit courtside cheering on the Indiana Fever, they watch a masterclass in geometry. The WNBA three-point line is calibrated at 22 ft 1.75 in (6.75 m), matching FIBA specifications, while the NBA arc stretches to 23 ft 9 in (7.24 m) at the top of the key.
This 20-inch differential alters shooter release velocity by approximately 1.4 to 1.8 ft/s. More crucially, high-entry angles (45°+) increase the effective opening of the 18-inch hoop by over 28% compared to flat line-drive shots entering at 35°.
Key Playmaking & Spatial Insights
Modern postseason offenses rely on corner and wing kickouts. The corner three in both leagues is shortened (22 ft in NBA, 21.65 ft in WNBA) because the sideline is only 50 feet wide. This geometric quirk creates the highest expected value (eFG%) perimeter shot in basketball.
How does entry angle dictate make probability?
A basketball has a diameter of roughly 9.5 inches. Entering a 18-inch rim vertically (90°) gives a margin of error of 8.5 inches. At a 30° entry angle, the apparent ellipse of the hoop narrows to just 9 inches—meaning a standard ball cannot pass through cleanly without clipping the rim. High-arc shooters who produce 48°+ entry angles maximize the clearance ellipse.
Why do WNBA and NBA three-point distances differ?
The WNBA adopted the international FIBA 3-point distance (6.75m / 22 ft 1.75 in) in 2013, creating a fast-paced game with rapid floor rotation. The NBA has maintained the 23-ft 9-in arc since 1997. Both leagues maintain identical 10-foot rim heights, 18-inch rims, and 50x94 foot total court dimensions.