The trio have now all met the entry standard for the championships, but nations are only able to enter two athletes per event.
Both Ayris and McTaggart are scheduled to compete again in Europe before the World Championships qualifying period closes.
McCartney, the 2016 Olympic bronze medallist, is scheduled to compete at the national championships in Auckland next week, but now may consider heading overseas to compete in order to impress the selectors.
Ayris and McTaggart competed in last year’s World Indoor Championships, finishing ninth and 11th respectively.
McCartney, who claimed the silver medal at the 2024 World Indoor Championships in Glasgow, set the national record mark of 4.94m in 1998.
All three pole vaulters have also qualified for this year’s Commonwealth Games in Glasgow.
Kiwi sprinters Zoe Hobbs and Tiaan Whelpton have run world indoor qualifying times in recent weeks, while shot putter Tom Walsh is also scheduled to compete in Poland.
– RNZ