Many on the Genny Ultra Mrathon A 40 mile running race along the Letchworth Branch of the Finger Lakes trail, Letchworth State Park road and ending up at the Mount Morris Dam and Recreation Area. Many on the Genny Ultra Mrathon Set a Reminder Enter your email address below to receive a reminder message. Email address Select the amount of Days before the event -- Select Days Before Event -- 1 Day 2 Days 3 Days 1 Week Submit Date and Time Saturday Jun 19, 2021 Saturday June 19th Contact Information www.manyonthegenny.com Set a Reminder Enter your email address below to receive a reminder message. Email address Select the amount of Days before the event -- Select Days Before Event -- 1 Day 2 Days 3 Days 1 Week Submit Share × Print Email Add to Calendar Facebook Twitter LinkedIn Tell a Friend × Select Calendar Type × Google Yahoo iCal (Outlook, Apple, or other)