Join the Myrtle Beach Mini Marathon for two events, the Coastal 5K and the Doggie Dash at The Market Common. All 5K participants will receive race bibs with timing chips, tech T-shirts and awesome surfboard-shaped medals. Doggie Dash participants will receive dog bandanas and race bib. The dog event is not timed but 100 percent of the proceeds will go to Grand Strand Humane Society.  Grand Park in The Market Common. Saturday, 7:30 a.m. for Coastal 5K, 9:15 a.m. for Doggie Dash. $40 for Coastal 5K, $25 for Doggie Dash. (843) 839-3500, www.marketcommonmb.com