He went on to post a level-par 71 in yesterday’s Edinburgh & East of Scotland Alliance event but was pipped for the main prize.
The John Glen Trophy went instead to Falkirk Tryst’s Daniel Ariens as he carded a net 70 playing off nine.
Catlin had the consolation of sharing top scratch prize with Challenge Tour player Jamie McLeary (Dalmahoy), who had halves of 36 and 35.
Third scratch went to Musselburgh club pro Norman Huguet on 72 (35,37).
Dunbar’s Wilson Morton secured second handicap prize with a net 73 off three while Catlin’s dad, Ian, shared third place on 74 with Musselburgh man Phil Leggate. Top senior prize went to Iain Stavert of Duddingston with a net 75 off four.
Ratho Park’s Andrew Erskine (387.5 points) heads the scratch order of merit heading into the festive break, folllowed by Chris Morris (Kingsknowe) on 341.5 and Gordon Law (Uphall) 340.5.