[3] He was also a regular competitor in Players Tour Championship events, where in the professional rounds he beat pros such as Kurt Maflin, Alfie Burden, Andrew Norman, Joel Walker and Nigel Bond.

[3] He was also a regular competitor in the end of season Q School events since their introduction and in 2012 he lost in a quarter-final match against Paul Davison, which would have gained him pro tour status had he won.

[3][5][6] He won his first match as a professional by beating Adam Edge 5–3 in Australian Goldfields Open qualifying, but lost 5–1 to Jamie Burnett in the second round.

Allen saw off Barry Pinches and Aditya Mehta both 5–1 in the qualifying rounds for the Shanghai Masters, before losing by a reversal of this scoreline to Li Hang.

Allen then lost 15 successive matches from August 2015 until the start of the 2016–17 season, when he beat Kurt Maflin 4–3 to qualify for the Riga Masters.