Do you think a marathon is a cake walk? Do you laugh in the face of a P90X? Then perhaps the Brave Soldier Challenge is for you. Promising to leave no muscle un-sore, this two day endurance test tasks competitors to flip tires, climb ropes, attack the monkey beams, and sandbag lift in pursuit of a pass/fail result. Think you have what it takes? See how you stack up and register. Fees go to Ralph H. Johnson VA Medical Center. The Citadel Recreational Soccer Complex, 171 Moultrie St. Saturday, 9am-5pm. $115, $65 student. (888)711-2728, www.bravesoldierchallenge.com