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Location: Celina, OH US 45822 Directions
Type: Run or Run/Walk
Race Website

Additional race information can be found at

Event Time Price Details
Grand Lake Marathon
7:15AM EDT
900 spots left.
Price increases February 28, 2018 at 11:59pm EST
Grand Lake Half Marathon
8:45AM EDT
1,251 spots left.
Price increases February 28, 2018 at 11:59pm EST
Grand Lake 5K
8:00AM EDT
500 spots left.
Price increases July 31, 2018 at 11:59pm EDT
Grand Lake Half Relay
8:45AM EDT
Events: Grand Lake Half Relay - Coed Grand Lake Half Relay - Female Grand Lake Half Relay - Male Grand Lake Half Relay - Masters
Grand Lake Full Relay
7:15AM EDT
Events: Grand Lake Full Relay - Coed Grand Lake Full Relay - Female Grand Lake Full Relay - Male Grand Lake Full Relay - Masters
Grand Lake Kids Marathon
1:00PM EDT
100 spots left.
Registration ends September 26, 2018 at 11:59pm EDT
Grand Lake Senior's Marathon
1:00PM EDT
100 spots left.
Registration ends September 26, 2018 at 11:59pm EDT
Lake Shore Dr
Celina, OH US 45822


USATF Certificate: This event can be used as a Boston Marathon qualifier. The USATF certificate ID# is OH14003MW. 


Participation Limits: Each individual event has runner limits. Register early for discounted entry fees and best shirt selection.


Expo, Late Registration and Pick-up: Friday, September 28th at Mercer County Fairgrounds: 1001 W Market St, Celina, OH 45822, Noon - 7 PM

Race day packet pick up is ONLY available for an extra $10 fee (can be elected at time of registration).  Packet pick up at the Friday expo is the preferred pick up method.  Plan ahead. You MUST have a photo ID to pick up your packet! If someone is picking up your packet, they must a copy of your ID and this Authorization for alternate pick up form.


Bib Ship Option: Bibs and runner packets will not be shipped.  If you are not able to make it to the Expo/Packet Pick Up on Friday Sept 28th, race day packet pick up is available for an additional $10 fee.  This fee is non-refundable and packets elected for this race day option WILL NOT be available for pick up on Friday at the expo.


Event Start Time: Full Marathon and Full Marathon Relay begin at 7:15am in Celina, Half Marathon and Half Marathon Relays begin at 8:45am in St Marys.  The 5K will begin at 8:00am in Celina, and the Kids Marathon and Seniors Marathon will begin at 1:00pm in Celina.


Parking: VERY limited parking is available at Lakeshore Park. Signs will direct you where to park at Lakeshore Park.  Please do not park in any restricted area. Please do not park in Downtown Celina YOU WILL BE TOWED. Please be respectful of municipal lots that are provided to service local business traffic. MAIN AND SUGGESTED PARKING: Ample parking is available at The Mercer County Fairgrounds 1001 W Market Street, Celina. Shuttle buses will take runners and spectators to the race start.

Shuttle Service: Shuttle service will take runners back to the fairgrounds parking at the participants discretion.


Costs: Online registration is open. Cost is tiered based on date registered.


Timing: Marathon will have split timing points at 6.55 miles, 13.1 miles and 19.65 miles.


Event Shirts: Late registrations may get a shirt based on availability.  Exchanges may be available after the race.


Gear Check: Gear check will be located at tent near Start/Finish
Items left at Start/Finish after the finish will be donated to C.A.L.L. clothing bank in Celina.


Important Course Information: Participants must maintain a reasonable pace along the course (15 Min/mile pace). A follow vehicle will be on course after the park that will maintain a 15 Minute pace.  Participants who fall outside of that pace will be asked to take a sag vehicle to the start/finish area. All aid stations will close in succession with this time plan. The course will be open until 2:00PM

Course Nutrition: On course nutrition for 2018 will be GU gels and GU Brew hydration drink.

GU developed a Marathon and Half Marathon Nutrition Planner to help runners dial in their plan for race day. We all know things can change on race day, but it helps to start with a plan!


Here’s how to use our Nutrition Planner

Step 1: Pick your goal finishing time and find out what your average pace will be
Step 2: Use the table to determine your total nutritional need for the event
Step 3: Mix and match your favorite products and flavors, then calculate your totals
Step 4: Make sure your plan meets your body’s demand for each nutritional element


Half Marathon GU Nutrition Needs Chart                                      

Full Marathon GU Nutrition Needs Chart


Ameneties: Tech-T, Finisher's medal, Window sticker, on course and post race food, beer token and goody bag.


Post Race Showers: Available at the Auglaize-Mercer YMCA after the races.


Roads will be closed to traffic: Auglaize County Sheriff, Mercer County Sheriff, City of St.Marys police department, City of Celina police department and Ohio State Park Patrol will monitor the course.


Spectator Maps: Maps will be provided for spectators to leapfrog the course to view participants.  Please have your support crew be respectful of the enclosure and follow maps provided.


Walkers: Walkers are welcome.


Wheelchairs: The course will be wheelchair friendly.


Race Contact Info

If you have any questions about this race, click the button below.

Race Sponsor
RaceJoy Enabled
RaceJoy UIRaceJoy UI

Free Live Tracking and Progress Alerts on Race Day!
(Race organizers are providing this as an included service.)

Make sure you download the RaceJoy mobile app for live phone tracking at Grand Lake Marathon Full/Half/Relay/5k/Kid's Marathon.

Carry your phone and use RaceJoy to add to your race experience with these key features:

GPS Progress Alerts

  • Receive GPS-based progress alerts at mile points on the course for current pace and estimated finish time.
  • Post to your Facebook and Twitter walls.
  • Have friends and family track your performance.

Live GPS Tracking

  • Supporting spectators can track your blue dot moving along the course from home or at the race site.
  • NearMe proximity alerts notify spectators when you are drawing near.
  • Find each other using RaceJoy’s MeetUp tool.


  • Receive fun, motivational audio cheers from your supporting fans.
  • Start sending cheers to others doing the race at any time.

Grand Lake Marathon Full/Half/Relay/5k/Kid's Marathon is sponsoring RaceJoy to provide participants and spectators these features for free (normally a 99 cents upgrade fee for both the participant and spectator).

- Participant must carry phone
- No official race timing information is provided for this race in RaceJoy

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