The Merrimac Miracle Organization is pleased to host the 6th Annual London OH Marathon as a fundraiser for Merri-Mac Park. We are raising funds to further improve the park by adding play equipment, recreational paths, sports fields, etc.
Format: The full and half marathon race events will start promptly at 7 am and the 5K at 7:15 am. The course will remain open for 5 hours after the last competitor starts.
Course: The start and finish will be located at Merri-Mac Park. All course maps can be viewed here. The flat, tree-lined scenic rails will take you toward Darby Creek Metro Park. At Darby Creek (for the full marathon), you’ll turn around and head back to London! Did we mention this race is flat? It is crazy flat!
Both the marathon and half-marathon courses are USATF certified! This course is perfect for that PR or BQ attempt!
Perks: All half marathon runners will receive a high-quality soft vintage style race shirt with the London OH Marathon logo, a finisher medal, and special promotional offers from local businesses. All full marathon runners will receive a full-zip London OH Marathon lightweight hooded sweatshirt, a finisher medal, and swag from local businesses.
Packet Pick up and event expo:
2026 Packet Pickup details are TBD, we will finalize these details in the weeks prior to the event and be sure all registered participants are notified.
There will be race day packet pick up. At Merri Mac Park starting at 6:15 AM. Be sure to arrive early if you need to pick up your packet on race day!
Elite athletes: This course is going to be crazy fast, and we’re looking for people who can light it up. Please contact Race Director David Mars at davidtmars@gmail.com for details. Elite entries will include a complimentary entry to the race and VIP accommodations on race day.
Event transfer: through April 10, 2026, if you need to change your event you can do so by following these instructions: https://help.runsignup.com/support/solutions/articles/17000062922-transfer-to-another-event
Apr 11, 2026
Distance — 13.1 Miles
Type — Running
07:00
$50.00
Apr 11, 2026
Distance — 13.1 Miles
Type — Running
07:00
$50.00
Apr 11, 2026
Distance — 26.2 Miles
Type — Running
07:00
$60.00
Apr 11, 2026
Distance — 26.2 Miles
Type — Running
07:00
$60.00
Apr 11, 2026
Distance — 5K
Type — Running
07:15
$25.00
These values represent the 3-year monthly averages for April in London.
London is a town in the Greater Columbus area of Ohio.
Read more launchExplore other exciting events happening in this same region.
location_on Yellow Springs, Ohio, US
calendar_today Mar 14, 2026
Hand-picked events we think you’ll love.
Nov 21, 2026
The RUN Manatee 5k series offers THREE adventures to celebrate ONE community. Participants will discover Manatee County…
Read more
Nov 28, 2026
Join us for the annual Turkey Trails 5k/10k! A fun, Thanksgiving-themed event that is perfect for the whole family.The…
Read more
Dec 13, 2026
Join us for the annual Candy Cane Course 5k/12k! A fun, Christmas-themed event that is perfect for the whole family.Th…
Read more
Mar 21, 2027
WE ARE NOW OFFERING AN AQUABIKE DIVISION! Triathlon Information:Join us for the annual Space Coast Triathlon, held in …
Read more
