[4] Having been with Thistle for a year and a half Scully went on loan to West of Scotland Super League side Petershill for four weeks in 2009 to gain more first team experience.

[9] After his recovery he made his senior début in the final game of the season on 7 May 2011 in a 3–0 victory against Raith Rovers in a Scottish First Division fixture where he kept a clean sheet.

[12] After Scully's impressive displays his manager Jackie McNamara admitted to having a selection dilemma with first choice keeper Scott Fox fit again following a virus.

[15] Having remained on the bench for a number of games, Scully returned to the starting line-up with Fox having sustained a hand injury.

[26] Scully made his Premiership debut for Thistle on 24 October 2019, coming on as a substitute for injured goalkeeper Tomáš Černý in a 1–1 draw with Hamilton Accies.

[29] After losing his place in the first team to Derek Gaston, he asked to be released and was given a free transfer by mutual consent in January 2019.

[30] Scully become new Dunfermline manager Stevie Crawford's first signing in January 2019, returning to East End Park after three-and-a-half years.