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Grand Lake Marathon

Celina, OH

Race Dates

2017: Saturday, September 23, 2017
2016: Saturday, September 24, 2016

Course Information

Profile: Mostly Flat
Type: Loop
Surface: Road/Pavement
Certified?: Yes

Race Day Weather

Mean Temp.: 59°F (15°C)
Average High: 69°F (20°C)
Average Low: 48° F (8°C)

Historical Weather

PR Score & Course Score

PR Score: 98.96
Course Score: 99.46

Race Size

2016: 142 Finishers
2015: 226 Finishers
2014: 366 Finishers

BQ Percentages

2016: 7.8%
2015: 10.6%
2014: 8.2%

Miscellaneous Information

Pace Groups?: Yes

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Course Description

The Grand Lake Marathon is an mostly flat loop course, mainly around Grand Lake. There is only approximately 50 feet between the high and low points of the course which gives runners an excellent chance at PRs and BQs.

Marathon Rankings

The Grand Lake Marathon was the 264th largest marathon in the U.S. last year and was the 193rd largest in 2014.

This year 7.8% of finishers qualified for the Boston Marathon and 10.6% of runners qualified for Boston in 2015.

This gives the Grand Lake Marathon the 173rd highest percentage of Boston Marathon qualifiers in the U.S. last year and the 245th highest percentage so far in 2016.

Its Course Score of 99.46 ranks it as the 100th fastest marathon course in the U.S. and the 3rd fastest course in Ohio.

The typical race time temperature and humidity levels are slightly above the ideal range for optimal marathon performance. This, coupled with the Course Score, gives the Grand Lake Marathon a PR Score of 98.96. This PR Score ranks it as the 133rd fastest marathon in the U.S. and the 9th fastest in Ohio.

Learn more about PR Scores and Course Scores on the FAQ page.

Elevation Chart

Max Elevation: 911 feet (277m)
Min Elevation: 859 feet (261m)


Ratings & Reviews for the Grand Lake Marathon

5 Stars from 1 Reviews

review of 2014 Grand Lake Marathon.   

5 / 5 Stars


Race is literally 26.2 miles around Grand Lake. It is a very flat course. Some parts of the race are boring (one spot smelled very farm like). There is a long stretch around mile 17 that is nothing but farm land (still very flat) Plenty of water/gatorade stops - one every two miles. Each station very supportive, cheering and dressed in costumes. No traffic to worry about. Start and finish at same location.

Race Tips

This race does have pacers. Pace groups were in 10 min intevals. Race started in the 50's and warmed to lower 70's by finish. Course is very flat and fast. I would recommended starting and staying consistent with pace.

Logistical Tips (Hotels, Restaurants, Parking, Discounts, etc.)

I would recommend booking hotel early. Celina is a very small town. I stayed at the West Bank Inn (capacity of 14 rooms) but Perfect location!! Once we parked I never started my vehicle again until I was leaving. Wonderful italian restaurant that shares the same parking lot. The starting line is walking distance. And an absolutely beautiful view of the lake.

Finish Time Equivalent

If you ran the Grand Lake Marathon in 3:57:00, what would your time in the Boston Marathon be?

See how your race times would compare on other marathon courses using the Marathon Time Converter Tool.