SARTELL - The 31st annual Apple Duathlon is this weekend in Sartell.

About 500 athletes are expected to compete in the race, which includes a 5K run, a 33K bike ride, followed by another 5K run.  It starts at 8:30 a.m. tomorrow (Saturday) at the Sartell Middle School.

The kids will also have a chance to compete, the Kids Apple Duathlon is tonight (Friday) startingat 5:50 p.m. also at the Sartell Middle School.