In January 2017, Alcinas secured a new two-year PDC Tour Card by whitewashing Jimmy Hendriks 5–0 in the last round of the final day of Q School. Alcinas and Cristo Reyes were thrashed 4–0 in the deciding doubles match in the second round of the World Cup to the Singapore team of Paul Lim and Harith Lim. At the 2018 PDC World Darts Championship he beat fellow Spanish Cristo Reyes 3-1 to progress to the second round for the first time. He then beat German Kevin Münch 4-1 to go into the Last 16, where he lost 4-0 to Darren Webster.