Interestingly , by 14 years of age , approximately 5 % of players indicated they still did not practice with runners on base .
By age 10 , 80.4 % of participants were practicing with runners on base and by 11 years of age 82.4 % were receiving signals .
By 14 years of age , approximately 5 % of players indicated they still did not practice with runners on base .
By age 10 , 80.4 % of participants were practicing with runners on base and by 11 years of age 82.4 % were receiving signals .