January
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February
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March
No races
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April
No races
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May
No races
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June
No races
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July
No races
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August
No races
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September
No races
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January – September0 races · already run
January
No races
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February
No races
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March
No races
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April
No races
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May
No races
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June
No races
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July
No races
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August
No races
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September
No races
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For organizers
Missing or stale marathon dates on the 2026 calendar?
Race organizers can send official sources for a free listing review so this calendar stays useful for runners choosing race weekends. We verify the official source before publishing, no fee.