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Marathon Pace Bands

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Best Boston Marathon Qualifiers

Best Boston Marathon Qualifiers

It's here! Our annual list of the year's
best marathons to help you qualify for the Boston Marathon.



Ontario Marathons


Decide which marathon is best for you by using our comprehensive Ontario Marathons Calendar.

  • Quickly view the course Elevation Profile and Race Details.
  • Create free course-specific marathon Pace Bands or buy waterproof, snap-on Pace Bands for your race.
  • Compare the details of marathons side-by-side.
  • View the PR Score and Course Scores of over 500 marathons to determine which gives you the best chance to PR or qualify for Boston.

Want to narrow down your marathon search? Use the Advanced Search Tools to find your perfect marathon by Location, State/Province, or by Keywords.
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Featured Races
Date Race
April 26, 2025 Salt Lake City Marathon
Salt Lake City, UT
Voted "Best Running Event in Utah" w/ 6 Events to Choose From!
September 28, 2025 Boulderthon: Boulder Marathon
Boulder, CO
World-Class Marathon Experience Finishing in the Heart of Boulder.
January 25, 2025 lululemon Classic City Marathon
Athens, GA
Try a marathon, a half-marathon, or a marathon relay this winter!
June 7, 2025 God’s Country Marathon Race Series
Potter County, Pennsylvania
Traverses through scenic north central Pennsylvania. 50th year anniversary. Boston Qualifier.


Ontario Marathons asc Course descPR Scoreasc descFinishersasc BQ% Reviews Compare

St. Lawrence Marathon More Info

Cornwall, ON
04/26/2025

Mostly Flat

Mostly Flat




Finishers

215 Finishers

Finishers

215 Finishers

Race Reviews

Reviews

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Mississauga Marathon More Info

Mississauga, ON
04/27/2025

Downhill

Downhill




Finishers

642 Finishers

Finishers

642 Finishers

Race Reviews

Reviews

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Toronto Marathon More Info

Toronto, ON
05/04/2025

Downhill

Downhill




Finishers

2,975 Finishers

Finishers

2,975 Finishers

Race Reviews

Reviews

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Georgina Spring Fling Marathon More Info

Georgina, ON
05/04/2025

Mostly Flat

Mostly Flat




Finishers

161 Finishers

Finishers

161 Finishers

Race Reviews

Reviews

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Ottawa Marathon More Info

Ottawa, ON
05/25/2025

Rolling Hills

Rolling Hills




Finishers

4,780 Finishers

Finishers

4,780 Finishers

Race Reviews

Reviews

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Sudbury Rocks Marathon More Info

Sudbury, ON
05/26/2024

Mostly Flat

Mostly Flat



Finishers

63 Finishers

Finishers

63 Finishers

Race Reviews

Reviews

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Niagara Ultra Races Marathon More Info

Niagara-on-the-Lake, ON
06/15/2024

Rolling Hills

Rolling Hills




Finishers

122 Finishers

Finishers

122 Finishers

Race Reviews

Reviews

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Georgina Marathon More Info

Georgina, ON
09/08/2024

Mostly Flat

Mostly Flat




Finishers

336 Finishers

Finishers

336 Finishers

Race Reviews

Reviews

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That Dam Hill Marathon More Info

London, ON
09/21/2024

Mostly Flat

Mostly Flat



Finishers

48 Finishers

Finishers

48 Finishers

Race Reviews

Reviews

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County Marathon More Info

Picton, ON
09/29/2024

Mostly Flat

Mostly Flat




Finishers

108 Finishers

Finishers

108 Finishers

Race Reviews

Reviews

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Muskoka Marathon More Info

Bracebridge, ON
10/05/2024

Rolling Hills

Rolling Hills




Finishers

259 Finishers

Finishers

259 Finishers

Race Reviews

Reviews

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Ottawa Fall Colours Marathon More Info

Ottawa, ON
10/12/2025

Rolling Hills

Rolling Hills



Finishers

158 Finishers

Finishers

158 Finishers

Race Reviews

Reviews

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Toronto Waterfront Marathon More Info

Toronto, ON
10/19/2025

Mostly Flat

Mostly Flat




Finishers

6,268 Finishers

Finishers

6,268 Finishers

Race Reviews

Reviews

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Niagara Falls International Marathon More Info

Niagara Falls, ON
10/27/2024

Mostly Flat

Mostly Flat




Finishers

645 Finishers

Finishers

645 Finishers

Race Reviews

Reviews

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Hamilton Marathon Road2Hope More Info

Hamilton, ON
11/03/2024

Very Flat

Very Flat




Finishers

470 Finishers

Finishers

470 Finishers

Race Reviews

Reviews

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