Stamford – Give a Child a JumpStart 5K/10K Walk/Run & Family Fund Day; professionally-timed race, USATF certified, to benefit JumpStart, JCC preschool program for children with special needs; Stamford JCC, 1035 Newfield Ave., (203) 487-0941, nschiffman@stamfordjcc.org, stamfordjcc.org. $36/adults; $18/students and children (to age 18).