DULUTH — The wet weather forecast for the 48th Grandma’s Marathon on Saturday has prompted the top contenders in the wheelchair division to pull out of the 2024 race. Five-time Grandma’s Marathon champion Aaron Pike of the United States will not race on Saturday down Minnesota's North Shore from Two Harbors to Duluth, and neither will four-time champion Susannah Scaroni of the U.S. Defending women's champion Jenna Fesemyer has also pulled ou…