Indianapolis Monumental Marathon

Indianapolis Monumental Marathon
Date	November
Location	Indianapolis, Indiana, United States
Event type	Road
Distance	Marathon, half marathon, 5K
Primary sponsor	CNO Financial Group
Established	2008; 16 years ago (2008)
Course records	Men: 2:15:41 (2023) Lyle O'Brien Women: 2:35:36 (2023) Rachel Hannah
Official site	monumentalmarathon.com
Participants	15,000 (2023)

The Indianapolis Monumental Marathon (also known as the CNO Financial Group Indianapolis Monumental Marathon for sponsorship reasons) is an annual road marathon usually held in early November in downtown Indianapolis, Indiana, United States. The marathon was first held in 2008 and includes a half marathon and 5K run. Since 2016, it has been the only full fall marathon run in Indianapolis. In 2015, it claimed to have become one of the 20 largest marathons in the U.S.^[1]