Old Boys is the only club remaining to represent Southland in Football's national Chatham Cup tournament.
As a result of their round one 1-nil win over Queens Park at the ILT Turf in Invercargill on Saturday.
In doing so they also claimed the Churchill Rosebowl trophy for the Southland team progressing furthest in the competition.
Southland's other representatives were all eliminated by northern opponents.
Southend United lost 2-nil to West End at Timaru, Waihopai went down by the same margin to Pleasant Point at Pleasant Point and Thistle crashed out 14-1 against Mosgiel at Mosgiel.
The Old Boys Queens Park local derby lived up to expectations as a close encounter with the result never a foregone conclusion despite Old Boys grabbing the initiative at the 20 minute mark with the only goal of the game.
As a spectacle the game lacked flair, but it was played in true cup football style with the knockout concept encouraging a strong no-nonsense approach.
"Of course I'm happy with the outcome it was a good game but I thought we had enough chances to go further ahead.
Queens Park are a good team though and always keep themselves in the game as they proved today," said Old Boys coach Ignacio Sande.
Both teams had a nervous settling in period before Old Boys took the lead and it was quick thinking by Baraa Toubat that was the catalyst for the goal.
Queens Park keeper Chris Pearson made a rushed clearance from the edge of his penalty area which went to Toubat who spotted the keeper out of position and volleyed a long range return into the unguarded Queens Park net.
Queens Park left it till the stroke of full time to have their best chance of grabbing the equaliser when with the Old Boys goal at their mercy a swift move was thwarted as the final shot on goal flew just wide of the upright.
In the Inter-City games in South Canterbury Southend United went to the half-time with a 1-nil deficit in Timaru but their West End opponent doubled the lead and secured the 2-nil win in a counter attack as Southend pushed forward looking for a second half equaliser.
At Pleasant Point Waihopai defended a 2-nil half time deficit.
Thistle was clearly outclassed at Mosgiel as their Otago opposition scored seven goals in each half to the response of a lone first half Thistle goal from Ashley Hughes.
Queenstown Rovers and Southend United returned to Women's Premier football after their exit from the ASB Knockout cup last Sunday with resounding wins in yesterday's games.
Southend's new signing Theresa Rhein carried on her good form from Waihopai netting 8 goals in her debut game as they accounted for Western Rovers 19-nil.
At Queenstown Sophie Aitken with five goals and Lily Waters four led the list of scorers in their 20-nil win over Old Boys.
Waihopai also hit double figures with Samantha Wong grabbing four goals in their 10-nil margin over Queens Park No 2.
The game of the day was between Queens Park and the Southend United Development team which was won after a torrid battle 4-3 by the Development girls.
A brilliant save late into the game from Development goalkeeper Emma Prinsloo prevented Queens Park's Lauren Christie
grabbing an equalising goal.
Gore Wanderers won the remaining game 4-1 against Thistle with Amanda Clark 3 and Mel McKenzie providing the goals for Wanderers and Vanessa Hamlin on target for Thistle.
Football South Zone Chatham Cup Round One: Old Boys 1 Queens Park 0; Pleasant Point 2, Waihopai 0; West End 2, Southend 0; Mosgiel 14, Thistle 1; Dn Tech 3, Northern 2; Northern Hearts 5, Queenstown 1; University 3, Melchester 1. Division One: Old Boys 8, Gore Wanderers Black 0; Gore Wanderers Red 4, Winton 2. Division Two: Old Boys Black 2, Cleanways Thistle 0; Old Boys White 8, Western Rovers 2; Waihopai 2, Queens Park Masters 1; Old Boys Red 2, Southend Green 0; Queens Park 3, Southend Black 3; Thistle Blue 2, Gore Wanderers 2.
- The Southland Times