An exercising apparatus for a speed skater or similar athlete including a base having a plurality of board members arranged in side-by-side relationship. Hinges pivotally connect adjacent board members to each other. A flexible plastic sheet overlays the board members and has a smooth glide surface on which the skater can slide. Bumpers are located at opposite ends of the base. Clamps releasably interconnect the base, the sheet, and the bumpers.