The St. Patrick’s Day 5K is a chip-timed race open to all ages and abilities and participants receive a commemorative finisher medal and mug. Stick around after the race for the post-run celebration complete with a beer or root beer, judged costume contest, fun activities, sponsor giveaways, and music! Proceeds benefit the Santa Rosa Recreation & Parks Scholarship Fund, providing swim lessons and summer camp experiences for children. Cost ranges from $23.39–$60.83. The event is Sunday, March 16 with sign-in from 7:30–8:45 a.m. Race starts at 10 a.m. Irish dancers perform at 11 a.m. Costume contest is at 11:15 a.m.  Event ends around 12:30 p.m. Race begins and ends at Old Courthouse Square. 600 4th St., Santa Rosa. Register at tinyurl.com/zhz27z2d.