Abstract: A device to trace and record the path of a golfer's swing comprising a golf club, a refillable reservoir tube for water or other flowable material, and a mat with blotter-like surfaces; the reservoir tube having a small diameter orifice at its lower end and having a means for refilling at its upper end; the reservoir tube being situated in a hole through the club head. A golfer's swing of the golf club will cause a thin jet of water to issue through the small diameter orifice by centrifugal and inertial forces resulting in an immediately visible trace on the mat, showing the golfer how his or her swing may be improved.