The event was put on by the Curry Family Foundation and was part of the kickoff celebration for the NBA's big weekend in Curry's hometown of Charlotte, North Carolina.
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Stephen, his mom Sonya, dad Dell Curry, wife Ayesha Curry, brother Seth Curry, and sister Sydel were split up into teams for a shooting contest.
Sonya and Dell were on a team shooting half-court shots, when with time running down Sonya nailed an underhand half-court shot with Stephen watching the whole thing from right under the basket.
The shot set off a huge celebration in the packed Carole Hoefener Center.
Stephen and his family helped fix up the gym, a place he used to practice as a kid.
The Warriors star is excited to serve as an ambassador for his hometown of Charlotte during the 2019 All-Star Game.
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Curry grew up there and went to college at Davidson University which is just outside the city limits. His Dad, Dell, also starred for the Charlotte Hornets and is still a hometown favorite.
Stephen is a starter for the all-star game, and he and his brother Seth will participate in the three-point shooting contest.
Warriors forward Kevin Durant and guard Klay Thompson were also selected to this year's All-Star game, which will be played on Sunday, Feb. 17.