A cornhole training apparatus for simulating practice scenarios involving a blocking bag positional near a hole on a cornhole game board. The cornhole training apparatus comprises a blocking bag mounting structure configured to engage the cornhole gameboard surface. The blocking bag mounting structure comprises a horizontal band and a pair of cornhole board engaging members. The pair of cornhole board engaging members are oppositely disposed at either end of the horizontal band and configured to extend around and engage the sides of the cornhole gameboard to hold the blocking bag mounting structure in place. A blocking bag is attachable to the horizontal band to simulate a cornhole bag obstructing the hole.