Arendse lost in the final of the 2013 SAPDO 501 Double Away to Charles Losper. He won the 2014 South African Masters by beating Devon Petersen 9–5 to qualify for the 2015 PDC World Darts Championship. Arendse needed two doctors' letters to get his daily medicine through customs at Heathrow Airport. After defeating Alex Hon in the preliminary round, he lost 3–0 in sets in the first round to Brendan Dolan without picking up a leg. In January 2015, he played in the PDC Qualifying School but a single last 32 appearance out of the four days was not enough to earn him a tour card. He has not played in an event since.