Six-time champion Rea scored his third pole in the last four races at the Czech circuit, but could only manage fourth in Saturday's opening race behind Alvaro Bautista, Toprak Razgatlioglu and Scott Redding.
A more competitive showing followed in Sunday's Superpole race as he fought hard with Yamaha rider Razgatlioglu for the win, losing out after taking to the gravel on the final lap, but in the final full-length race he had no answer to the pace of Razgatlioglu and Bautista in the closing stages, finishing third.
