There’ll be over 400 participants toeing the line (I guess it would be the water line) at Sunday’s Rocketts Landing Triathlon and Duathlon. And all those swim-bike-runners on and around the James mean there’s a great need for volunteers. Sheri Crowell, of Richmond Multisports, tells me they could really use volunteers to help out along the run and bike courses, as well as safety kayakers for the swim in the James River. All volunteers, she said, will receive a crew t-shirt and post-race food and beverages. If you’re a triathlete, and you’re not racing this weekend, or you just think it would be cool to have a front-row seat to a giant triathlon, why not lend a hand? Register to volunteer at www.richmondmultisports.com.