Callahan said it was the first time the Gisborne club had as many as five athletes competing in international-class categories.
Capria Tamatea, 11, will be among the tumblers tonight and has stepped up to youth-international level.
She will compete in an event at Rotorua in two weeks, aiming to qualify for the Australian national championships and Indo-Pacific champs in Canada.
If she succeeds, she will follow the path to international competition of her aunt Tiffany Walters, who competed in the Netherlands in 2005.
Lily Rolls, 13, will compete in tumbling at sub-junior international level.
Callahan said the Central Champs would provide her with a test, to see how close she might get to the international qualifying mark.
Charlie Holdsworth will compete at youth-international level in trampoline.
“He has come a long way in a short time,” Callahan said.
“He has two double-somersaults in his routine and he's only 10.”
Leah Scholefield, 16, has represented New Zealand and her best event is double-mini trampoline.
She hopes to again qualify for the Australian nationals and Indo-Pacific champs.
Callahan said she had trained hard and got a lot stronger.
Senior-international trampolinist Kaiya Huta, 17, has been to two world championships.
“He has two triple-somersaults in his routine and the rest are all doubles,” Callahan said.
“He'd be one to come and watch.”
The Central Champs are the first trampoline and tumbling competition of the year in New Zealand.
Spectators can witness the action free of charge.
