. >> reporter: every few months, jack nielsen get hits parents to help him sort through all the racquetsshoes and clothes that accumulate in their garage in alamo. jack collects all this tennis stuff on purpose. >> can be an expensive sport to play. and i kind of wanted to break down that barrier for a lot of people, um, you know, in the bay area. we got kids' racquets, too,. >> reporter: three years ago at age 14, jack created tennis community cares, asking for donations of gently used tennis gear. >> maybe somebody tried to play tennis and they played it for, you know, a few months and then they realized they didn't like it and they have all this equipment laying around or maybe they had old racquets they aren't used too much. >> in fairly good shape. >> reporter: he put out donation barrels at local tennis clubs and drew up a business plan convincing the u.s. tennis association to become partners. >> it wasn't just a couple of racquets and shoes. this was garages full of clothing and shoes and racquets and every type of thing. all of a sudden, we can direct these to different programs

. >> reporter: every few months, jack nielsen gets his parents to help them sort through these racketses and clothes that akeem hunt in the garage in alamo. jack collects this on purpose. >> it can be an expensive sport the place i wanted to break down the barrier for a lot of people in the bay area. we have kids rackets as well. >> reporter: at the age of 14, jack created "tennis community cares" with gently used tennis gear. >> maybe they played for a few months and realize they did not like it and they have equipment laying around or old rackets that of not being used much. >> reporter: he put out the donation barrels at the local tennis clubs, drawing up a business plan to convince the u. s. tennis association to partner with them. >> and the garages full of clothing, shoes and rackets, everything, and all of a sudden he realized he could direct this throughout the bay area. >> reporter: jack is a senior and says that the tennis community cares has helped nearly 500 people by giving away 200 rackets, the same number of shoes, and 800 clothing items. most "to the kids that would oth

. >> reporter: every few months, jack nielsen get hits parents to help him sort through all the racquetsaccumulate in their garage in alamo. jack collects all this tennis stuff on purpose. >> can be an expensive sport to play. and i kind of wanted to break down that barrier for a lot of people, um, you know, in the bay area. we got kids' racquets, too,. >> reporter: three years ago at age 14, jack created tennis community cares, asking for donations of gently used tennis gear. >> maybe somebody tried to play tennis and they played it for, you know, a few months and then they realized they didn't like it and they have all this equipment laying around or maybe they had old racquets they aren't used too much. >> in fairly good shape. >> reporter: he put out donation barrels at local tennis clubs and drew up a business plan convincing the u.s. tennis association to become partners. >> it wasn't just a couple of racquets and shoes. this was garages full of clothing and shoes and racquets and every type of thing. all of a sudden, we can direct these to different programs all throughout the bay