Jackson Prouty of Elk Point continued his rise in the regional running scene with a standout performance at the Sioux Falls Half Marathon on Sept. 21, placing second in his age division and 19th overall out of 1,057 runners.Prouty, 21, completed the 13.1-mile race in 1 hour, 24 minutes and 58 seconds, improving on last year’s third-place age group finish. He also placed 18th among 471 male…