River regatta. Swimming and diving The IGSA Sport Swimming and Diving carnival has been held annually since 1925. Today it is typically held in March at the Sydney Olympic Park Aquatic Centre. In both sports, schools compete in divisions (three for swimming and two for diving) based on their results from the previous year. Both divisions have the same point score and the highest total point score within each division is deemed the Division Champion and presented with a shield. The winning school from each of the first divisions is awarded the carnival champion. Athletics The IGSA Sport Track and Field carnival has been held annually since 1923. Today it is typically held in June at Sydney Olympic Park. Competing schools are divided into three divisions based on their results from the previous year. The Division Champions are presented with a shield, with the winning school of the first divisions awarded the carnival champion. Gymnastics The IGSA Sport annual Gymnastics Carnival was first held in 1969. Today the carnival is typically held in October, at the Sydney Olympic Park Sports Centre in Sydney Olympic Park. Students may compete in either Rhythmic (RG) or Artistic (WAG) gymnastics, and schools are placed in divisions (two for rhythmic and three for artistic) based on their results from the previous year. Through combined WAG and RG results, a Champion school is declared. Tildesley Tennis The Tildesley Tennis Shield competition is IGSSA's longest running carnival. It was first held in 1918, with the now defunct Normanhurst School in Ashfield declared the champion school, and Daphne Akhurst (1903–1933) the winner of the singles competition. Akhurst was to become one of the best female tennis players Australia has ever produced. She was a pupil of Normanhurst School, which in 1918 had as its Headmistress, Miss Evelyn Mary Tildesley (1882–1976) from Staffordshire, England. Normanhurst School had a very successful tennis program, and by the 1920s had produced two of Australia's most famous female tennis players, with Rosie Payten in addition to Daphne Akhurst. It was Tildesley who donated "a beautiful oak and bronze shield" for a tennis competition which encouraged team spirit among Sydney's Protestant girls' schools. The Shield was to be presented to the school which showed the best average score in tennis, with each school sending a tenth of its students over the age of twelve. The idea behind this was that each school would be