Perry defeated world number one Nicol David in the quarter-finals and Alison Watters in the semi-finals but lost in straight games against Grinham.
The Aussie took the opening two games 11-6 and 11-5.
Perry, 32, came back from 10-6 to level in the third game before Grinham clinched her fourth British Open title.
But while Perry was unable to reproduce her quarter-final and semi-final heroics, the Banbridge woman can look back on a tournament where she made a major breakthrough.
The British Open is almost on a par with the World Open and her performance looks certain to improve Perry's current global ranking of seven.
The Banbridge woman, who defeated David in Manchester on Saturday, secured a 10-12, 11-8, 11-7, 11-9 over English player Watters in Sunday's semi-final.
In the quarter-final, Perry survived three match balls in the third game as she stormed back to beat David on a 6-11, 12-14, 15-13, 11-5, 11-9 scoreline after a marathon 76-minute contest.
This week's achievement represents a greater triumph even than Perry's effort in the same stadium here last year, when she reached the semi-final of the World Open before losing to David.
Jo Hopkins, Performance Manager at SINI, who was with Madeline at the British Open had this to say,
“We are all very proud of Madeline’s achievement, by reaching the final of the British Open and beating the world number one on the way, Madeline has demonstrated that she is capable of beating the best in the world.
It was lovely to see Madeline’s natural ability and talent shine through and also gratifying to see all her hard work and determination pay off. She now goes into the World Open competition in Amsterdam next week full of confidence and in good playing form.”
Perry will be in action in the World Open which starts in Amsterdam later this month.
Article from BBC Online
