Abstract: A track set includes track sections having parallel first and second rail edges on which a ball travels. Each track section includes a first upstanding sidewall projecting from the first rail edge having a first guide rail positioned a sufficient distance radially outward of the first rail edge. Each track section further includes a second upstanding sidewall projecting from the second rail edge having a second guide rail positioned a sufficient distance radially outward of the second rail edge. A connection member includes a resilient retaining portion configured to be inserted and retained between two spaced-apart pillar supports on at least one other track section to attach thereto. The track sections accommodate a derailed ball using a guide rail positioned a sufficient distance from an adjacent rail edge, to support the derailed ball via the guide rail and one rail edge when the ball rolls off the first and second rail edges.