At the 2015 World Championship, Pipe led Australian qualifier Laurence Ryder 2–1 in the first round but then lost six consecutive legs to suffer a surprise 3–2 defeat. He was knocked out in the third round of the UK Open for the second year in a row, this time 9–5 by Jan Dekker. Pipe's first final of the year came at the Dutch Darts Masters in June which he reached without facing a single top 20 player, but he was whitewashed 6–0 by Michael van Gerwen. He lost 10–7 in the first round of the World Matchplay to Jamie Lewis and 3–0 in sets to Robert Thornton in the second round of the 2015 World Grand Prix. After failing to get past the second round of the last two majors he played in 2015, it meant that Pipe has not reached the quarter-finals of a major event in over two years.