Prices PhD PhD As a PhD student you can either join the ACLO or the SPR depending on your contract with the University: If you are a PhD scholarship student you can join the ACLO for €59,95. You can buy this ACLO Card at the front desk of the sports center or at ACLO Station. If you are an employee of the RUG you can contact the SPR (http://www.sprsport.nl/en/). If you are unsure about your contract your graduate school or front desk of the Sports Center can inform you accordingly. SPR-members can make use of the grouplessons, open hours and can make reservations for tennis, squash and some other sports. SPR-members can only join the course post-enrollment and cannot be a member of one our student sports clubs.