Kyle Greenleaf retrieved his medal from the official’s tent alongside the track at Pennsauken High School and decided he’d call it a day.

“I wanted to go out on a high note, rather than risk a bad mark,” said Greenleaf after placing fifth in the state during the 400-meter dash at the NJSIAA Meet of Champions on June 4. “This was the race I really wanted, and there was nothing better for me than placing in the 400, so I believe I made a good choice. I’m proud of the season I had.”

The Barnegat senior clocked a time of 48.04 seconds, breaking his previous record by more than a half-second, to finish…