Standout performances by youngest and oldest competitors marked Saturday’s AKtive Triathlon, the first communitywide triathlon held here in about 20 years.

Sixty-one solo and team competitors entered the event, which included a 500-yard swim, 12-mile bike and five-kilometer run.

The youth division included a one-mile run.

Competing with just one other team member, swimmer and runner Hayden Jimenez, 9, nearly caught a team of three boys who won the event’s 11-12 age class, finishing just…