Two goals from Annan's Sean O'Connor secured victory over champions Arbroath and a Third Division promotion play-off place for the hosts.
O'Connor drilled the ball home in the 22nd minute, meeting a knock-down by team-mate Bryan Felvus.
Gavin Swankie almost doubled the lead but his free-kick was saved.
O'Connor got his second from a Mark Docherty cross while Steven Sloan clinched the win with 20 minutes to go, heading home from 12 yards.
Annan Athletic: Summersgill, Muirhead, Neilson (Peter Watson 89), Aitken, Docherty, Steven Sloan, Steele, Gilfillan (Macfarlane 21), Cox (Jardine 89), Felvus, O'Connor. Subs Not Used: Jamieson, MacBeth.
Goals: O'Connor 23, 66, Steven Sloan 72.
Arbroath: Hill, McMullan, Malcolm, McManus, Wedderburn (Falkingham 55), Chisholm, Sibanda, Swankie (Jordyn Sheerin 74), Strachan, McGowan (Doris 55), Paul Sheerin. Subs Not Used: Burns, Griffin.
Booked: Chisholm, Malcolm, Sibanda.
Ref: Des Roache