The club arranged a number of celebrations to mark the 100 years but the main event organised was a Centenary Dinner which was to be held at Formby Hall, Atherton on the 30th October 1976. However, due to a fire at Formby Hall the dinner took place at Aspull Civic Hall, with some of the guests travelling upto 200 miles to attend.
The Club President Mr Ernest Chadwick and his Jennie headed the table of honoured guests from the swimming world including Mr. Fred Moorhouse - President of Northern Counties ASA; Mr. Harry Booth - Lancashire County WPSA; Mr. Reg Way - Bolton & District SWPA; Mr. L. Torres - Manchester & District SWPA; Mr. John Cleworth - Life Member of Tyldesley SWPC; Mrs. A. Eckersley - Councillor and Mrs Len Sumner, Wigan's Mayor Elect who presented the Len Sumner Centenary Cup to the club.
246 people attended the dinner with the caterers being J. Booth & Son Ltd of Westhoughton. Waterfields of Leigh made a large cake decorated to represent a swimming pool complete with lane ropes and goal posts.
Each guest received a centenary medallion and a small gift.