A swimmer training device includes a frame, a variable weight device, a first block, a second block, and a cable. The frame includes a bottom support section, a top section, and a plurality of support members. The first block is coupled to the top section, and comprises a plurality of first main pulleys that are each rotatable about a first axis. The second block is coupled to the variable weight device, and comprises a plurality of second main pulleys that are each rotatable about a second axis that is parallel to the first axis. The cable is wound at least partially around each of the first main pulleys and each of the second main pulleys, and extends from the top section of the frame.