The combined women's grade has 13 teams competing, making it larger than the other men's grades of 35+ with 11 teams, the 45+ grade with 12 and the 50+ with seven.
"We've had a huge increase in women's football, which is great," said James.
Games last 40 minutes each with teams playing 2-3 matches per day.
With eight fields to play on, each age grade is split into two pools and after the round robin competition, they will play cross over matches to find the sides that will go for the medals on Sunday.
On a hot afternoon, there was also a large marquee set up outside the Wanganui Athletic FC clubrooms for teams to shelter from the sun and enjoy a beverage.