A short game golf trainer system in three releasably coupled parts: a horizontal base, a vertical support, and a cantilever horizontal top plate. The base has anchoring features, such as holes for receiving spikes, for anchoring the base to a putting green. The support is preferably one piece of molded plastic. The top plate is generally an irregular hexagonal plate and may have an arcuate front side. When assembled, the top plate is cantilevered from the support. The top plate has a viewing port located nearer the front side than the rear, but spaced apart from the front side by more than half of a golf ball diameter. The viewing port has a diameter less than a golf ball diameter. Top plates may be made in different lengths: longer for putting and shorter for chipping and pitching. Supports may be made in different heights: shorter for putting and higher for chipping and pitching.