The UltraKotlina will take place in Szklarska Poręba from Friday 10 October 2025 to Sunday 12 October 2025. You can run between 15 and 182 kilometers.

UTMB Index

Saturday Oct 11

PFC Run Day

Praha - 75 km from Hamr na Jezeře

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1 km

5 km

60 min

The PFC Run Day will take place in Praha on Saturday 11 October 2025. You can run between 5 and 60 text.unit_min.

Sat - Sun Oct 18-19

O-SEE Ultra Trail

Oybin - 16 km from Hamr na Jezeře

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The O-SEE Ultra Trail will take place in Oybin from Saturday 18 October 2025 to Sunday 19 October 2025. You can run between 16 and 100 kilometers.

UTMB Index

Sunday Oct 19

Kros Českým rájem

Skokovy - 27 km from Hamr na Jezeře

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5 km

10 km

15 km

The Kros Českým rájem will take place in Skokovy on Sunday 19 October 2025. You can run between 5 and 15 kilometers.

Saturday Nov 1

Jizerun

Jablonec nad Nisou - 23 km from Hamr na Jezeře

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162 km

The Jizerun will take place in Jablonec nad Nisou on Saturday 1 November 2025. You can run 162 kilometers.

Sunday Nov 2

Motolské jamky

Praha - 75 km from Hamr na Jezeře

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5 km

10 km

The Motolské jamky will take place in Praha on Sunday 2 November 2025. You can run between 5 and 10 kilometers.

Saturday Nov 8

Podzimní přespolní běh na Duhovce

Líbeznice - 62 km from Hamr na Jezeře

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The Podzimní přespolní běh na Duhovce will take place in Líbeznice on Saturday 8 November 2025.

Sunday Nov 16

Chuchelský dostihový kros

Praha - 75 km from Hamr na Jezeře

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The Chuchelský dostihový kros will take place in Praha on Sunday 16 November 2025. You can run 6 kilometers.

Wednesday Nov 19

Rothenburger Crosslauf

Rothenburg/Oberlausitz - 71 km from Hamr na Jezeře

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The Rothenburger Crosslauf will take place in Rothenburg/Oberlausitz on Wednesday 19 November 2025. You can run between 5 and 10 kilometers.

Saturday Nov 22

Trail do Háje

Praha - 75 km from Hamr na Jezeře

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9 km

14 km

The Trail do Háje will take place in Praha on Saturday 22 November 2025. You can run between 9 and 14 kilometers.

Saturday Nov 22

Čertovskej wintertrail

Hamr na Jezeře

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17 km

33 km

The Čertovskej wintertrail will take place in Hamr na Jezeře on Saturday 22 November 2025. You can run between 17 and 33 kilometers.

Fri - Sun Dec 5-7

Pražská stovka

Praha - 75 km from Hamr na Jezeře

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32 km

65 km

122 km

The Pražská stovka will take place in Praha from Friday 5 December 2025 to Sunday 7 December 2025. You can run between 32 and 122 kilometers.

Saturday Dec 6

Maraton Praha - Dobříš

Praha - 75 km from Hamr na Jezeře

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10 km

42 km

The Maraton Praha - Dobříš will take place in Praha on Saturday 6 December 2025. You can run between 10 and 42 kilometers.

Saturday Dec 6

Winter Skyrace

Ještěd - 11 km from Hamr na Jezeře

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6 km

13 km

22 km

The Winter Skyrace will take place in Ještěd on Saturday 6 December 2025. You can run between 6 and 22 kilometers.

Sunday Dec 7

Běh Boudeckou roklí

Vojtěchov - 32 km from Hamr na Jezeře

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7 km

The Běh Boudeckou roklí will take place in Vojtěchov on Sunday 7 December 2025. You can run 7 kilometers.

Saturday Jan 10

Leki Ještěd 24 Winter

Ještěd - 11 km from Hamr na Jezeře

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Backyard Ultra

The Leki Ještěd 24 Winter will take place in Ještěd on Saturday 10 January 2026.

Sat - Sun Jan 10-11

Ještěd Winter Running Weekend

Ještěd - 11 km from Hamr na Jezeře

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The Ještěd Winter Running Weekend will take place in Ještěd from Saturday 10 January 2026 to Sunday 11 January 2026. You can run between 10 and 24 kilometers.