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Europe
23 - 25 October 2026
30 - 31 October 2026
30 October - 01 November 2026
22 - 24 January 2027
18 - 21 March 2027
01 - 04 April 2027
08 - 10 April 2027
23 - 25 April 2027
30 April - 02 May 2027
13 - 16 May 2027
14 - 16 May 2027
5th June 2027
10 - 13 June 2027
17 - 20 June 2027
18 - 20 June 2027
23 - 27 June 2027
06 - 10 July 2027
07 - 11 July 2027
09 - 11 July 2027
14 - 18 July 2027
15 - 18 July 2027
23 - 25 July 2027
05 - 07 August 2027
06 - 08 August 2027
09 - 12 September 2027
10 - 12 September 2027
24 - 27 September 2026
18 - 20 September 2026
24 - 30 August 2026
Asia
06 - 08 November 2026
13 - 15 November 2026
27 November - 06 December 2026
10 - 12 December 2026
08 - 10 January 2027
05 - 07 March 2027
09 - 11 April 2027
29 April - 02 May 2027
11 - 13 June 2027
04 - 05 September 2027
16 - 18 October 2026
02 - 04 October 2026
11 - 13 September 2026
10 - 12 April 2026
14 - 15 March 2026
North America
04 - 06 March 2027
08 - 11 April 2027
22 - 25 April 2027
04 - 06 June 2027
25 - 27 June 2027
22 - 24 July 2027
16 - 18 September 2027
23 - 26 September 2027
07 - 10 October 2027
01 - 03 October 2026
14 - 16 August 2026
27 - 28 June 2026
South America
18 - 22 November 2026
31 March - 04 April 2027
24 - 27 June 2027
30 July - 01 August 2027
Oceania
26 - 28 November 2026
13 - 14 February 2027
Africa
27 - 30 May 2027
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Bison Ultra-Trail® 2026 - Bison Ultra-Trail 100
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