St Clair No 1 Brent McEwan sank a birdie putt on the 18th green to beat Sean Geary and give St Clair a 3.5-2.5 win over Chisholm Park in the semifinal at St Clair on Saturday.
The win pits the defending champion against the unbeaten Otago Blue sextet in next Saturday's final at Balmacewen.
With McEwan and Geary tied playing the final hole, the outcome looked set to be a 3-3 draw which would have given the Park team its first final berth on a countback of holes.
At No 6, Park's Kyle Geary beat Brent Butler by an impressive 6 and 5 which gave his team a superior hole tally.
St Clair was without three of its regular players - Tony Giles and Clayton More were unavailable, while club stalwart Greg Johnson is at Muirfield, in Scotland, watching the British Open.
With three holes to play, St Clair looked certain to take the honours with McEwan 2-up on Geary.
But surprisingly, McEwan bogeyed 16 and 17 allowing Geary to win both holes with pars and get back to square.
St Clair No 2 Stephen Hitchcox beat Mark Collie on the 15th green while Andrew Hobbs provided St Clair with its third win at the expense of schoolboy Conor Jamison.
St Clair No 5 Paul Brouwer led early but lost five holes in a row giving Anthony McCullough a win on the 16th green while Geary gave the Park's tail two wins.
The tightest game was between No 3s Chris Snow and Phil Bungard, which finished all square.
Giles and More are available for the final and will play at Balmacewen if selected.
