Brandywine Battlefield 5K, Brandywine Battlefield Park, 1491 Baltimore Pike, Chadds Ford. Start: 8:30 a.m., fee: $20. brandywinebattlefield5k.com
13th Annual Philadelphia City 6 5K
9 a.m. Starts at 33d and Market Streets (Drexel Recreation Center). $20 pre-reg. Benefits Coaches vs. Cancer. Many of the City Six basketball coaches will be there, including Bruiser Flint and Fran Dunphy.