Boys generally run faster than girls, and the speed difference increases significantly after the age of 15. Prior to this age, differences are less pronounced, but boys still typically maintain a slight advantage in sprinting performance.
The provided reference specifically highlights that the performance gap between genders widens considerably after the age of 15. This suggests that factors like hormonal changes during puberty, which affect muscle mass and strength development more significantly in boys, contribute to this increased disparity. Therefore, coaches should consider these developmental differences when evaluating sprint performance among children.