The Santa Rosa Marathon is back this weekend, starting at Juilliard Park and taking over the streets of downtown. Hosted by True Grit Running, this event is popular with recreational and expert runners alike, and while spots for the full marathon and half marathon are sold out, there’s no one stopping you from cheering on the athletes. After the run, the real fun begins when the Ready Set Growl Beer Festival turns the park into a beer paradise, with over 30 breweries and local vendors offering custom growlers to go. The Santa Rosa Marathon starts at 6am on Aug. 23, at Juilliard Park, 227 Santa Rosa Ave., Santa Rosa. The Beer Festival begins at 11am. $35–$45. 707.543.3770.