There’s plenty on this weekend’s calendar, including a full day of races at Caffeine and Octane’s Lanier Raceway in Braselton, the Country & Cornhole Fest in Flowery Branch, a farmer’s market, a slew of concerts – ranging from the kickoff of Gainesville’s First Friday Concert Series with Rock Station Band to SHADY: A Tribute to the music of Eminem – and Downtown Draft’s Adult Field Day at Roosevelt Square, among others.