LAKEWOOD — Amiyah Nash didn’t need to wrap her time as an athlete with a gold bow. Silver will work just fine. The Fountain-Fort Carson senior set a personal best twice on Thursday morning, placing her in the lead entering the finals of the 5A girls discus at the Colorado Track and Field Championships. She placed second, and she was absolutely great with that. “I feel very happy,” said Nash, who threw 128-foot-5 in the morning session. Kaia Bennett, the event favorite, won for Rocky Mountain with a toss of 130 feet, 9 inches. “I told myself at the beginning of the year that I would place top three, so that’s what my goal was.” Did holding the lead change that? No. “I want everyone else to succeed. So watching everybody PR and go up in place makes me happy as well.” It’s rare to find an athlete to contented as Nash. She is pleased with her progression — a state qualifier as a sophomore when she “threw it over the fence,” to fifth place last year to runner-up as a senior.…