Ultras in December 2026

15 upcoming ultras happening worldwide in December 2026. Filter by country, exact distance, or elevation.

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10K races in DecemberHalf marathons in DecemberMarathons in December

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SpainFranceGermanyItalyPortugalUnited KingdomIrelandNetherlandsBelgiumSwitzerlandAustriaDenmarkSwedenNorwayFinlandPolandCzech RepublicGreeceUnited StatesCanadaMexicoBrazilArgentinaChileAustraliaNew ZealandJapanSouth Africa

This calendar in numbers

This calendar currently lists 15 upcoming events, from Dec 4, 2026 to Dec 19, 2026. December is the busiest month, with 15 events scheduled. Course distances range from 50 km to 210 km.