Jayce Calhoon barely missed the senior national time standard in the 200-meter backstroke last week, finishing 69th in the nation at the USA Swimming Junior National Swimming Championships in Federal Way, Wash.
Calhoon, who will be a senior at Sweet Home High School this fall, was half a second off the senior standard, swimming 2:09.75 to post a personal best on a long course, swum in a 50-meter pool rather than the typical 25-meter or…