【How-to】Why is broad jump important

The average, or 50th-percentile, jump for 13- to 14-year-old boys is about 17 inches, fitness expert Jay Hoffman writes in “Norms for Fitness, Performance and Health.” The 10th to 20th percentiles run from 12.3 to 13.8 inches; 30th to 40th percentile is 15 to 16 inches.