Abstract: A water-permeable, grass-like sport surface is provided. The sport surface comprises a solid, porous, resilient base mat and a thermoplastic, synthetic fiber, grass-like mat placed over the base mat. The grass-like mat is prepared by tufting synthetic fibers into a water-permeable fabric to obtain a fabric having loops of the synthetic fibers on the fabric's bottom side and a grass-like pile on its top side, then placing on the loops on the bottom side of the fabric a water-permeable, heat-resistant membrane, composed of high melting-point fibers or a mixture of high melting-point fibers, followed by heating the membrane to fuse the synthetic fibers to the membrane.