As 4 p.m. approached, Gemma Bongiorni stormed away from the long jump pit, frustrated and angry. Her first jump of 15 feet, 7½ inches stuck her in 26th place, but she couldn’t climb higher with her next two jumps.

“I don’t know what happened,” the Southern Regional senior said about an hour later, moments after helping the 4×100-meter relay break the school record for a third time this season during the NJSIAA Meet of Champions on June 3.