The 100 Toughest    Races in the World

• 1. Tour de France
• 2. Tour D'Afrique
• 3. Peak Death Race
• 4. Odyssey Endorphin Fix
• 5. Race Across the West
• 6. Texas Water Safari
• 7. Arrowhead (Footrace)
• 8. Cape Epic
• 9. Yukon River Quest
• 10. Great Divide Race
• 11. Arrowhead (ski)
• 12. Barkley Marathons
• 13. Atacama Crossing
• 14. Adirondack 540
• 15. Jungle Marathon
• 16. Tour of California
• 17. Hurt 100
• 18. Furnace creek 508
• 19. Gobi March
• 20. Hard Rock 100
• 21. St. Croix Coral Reef Swim Race
• 22. BC Bike Race
• 23. Badwater 135
• 24. Marathon De Sable
• 25. Planet Adventure
• 26. Wasatch Front 100
• 27. 24 Hours of Lappe
• 28. Trans Rockies
• 29. Mount Rushmore Trail 100
• 30. Bear 100
• 31. Bighorn 100
• 32. Primal Quest
• 33. Kayak the Nile
• 34. Avalon 50 Miles
• 35. Leadville Trail 100 (Run)
• 36. Manhattan Marathon Island Swim
• 37. La Ruta Maya Belize River Challenge
• 38. McNaughton Park 150 Mile Trail Run
• 39. AuSable River Canoe Marathon
• 40. Rock and Ice Ultra
• 41. Grand Tetons 100
• 42. Plain 100
• 43. Massanutten Mounta Trails 100
• 44. Canadian Death Race
• 45. Peak Races 200 Mile Funeral Run
• 46. Kettle Moraine 100
• 47. Zane Grey 50
• 48. Coastal Crawl 10K Swim
• 49. Arctic Circle Race
• 50. Ironman Lake Placid
• 51. Devizes to Westminster
• 52. IronMan Lanzarotes (Spain)
• 53. IronMan Canada
• 54. IronMan Hawaii World Championship
• 55. Silver State 50
• 56. Breckenridge 100
• 57. Swim Miami
• 58. Dusi Canoe Marathon
• 59. Isuzu Berg River
• 60. Mt Hood PCT 50
• 61. White River 50
• 62. Quicksilver 50
• 63. Leona Divide 50
• 64. Bridge to Bridge Swim
• 65. DaIsland Canoe Marathon
• 66. McKenzie River 50
• 67. Western States 100
• 68. WildFlower Long Course Triathlon
• 69. Avon Descent
• 70. North Routt Coureur des Bois
• 71. Alcatraz Challenge
• 72. La Traversee du Lac Saint-Jean
• 73. Oosik Classic Ski Race
• 74. Grand Defi des Glaces
• 75. The Big Swim
• 76. Horsetooth Open Water 10K
• 77. Peak Ultra Challenge
• 78. Iditarod
• 79. Gold Rush Adventure Challenge
• 80. MegaDose 4-Day Adventure
• 81. Untamed VA
• 82. Raid the North Extreme
• 83. Polar Challenge
• 84. North Face Tour du Mont Blanc
• 85. Overmountain Extreme
• 86. Herc Open Hiking Race
• 87. The BEAR (Beach Extreme Adventure Race)
• 88. Soggy Bottom 100
• 89. Cascade Cream Puff
• 90. Leadville Trail 100 (Bike)
• 91. Crocodile Trophy
• 92. La Ruta de Los Conquistadores
• 93. MT Hood Cycling Classic
• 94. RAAM
• 95. Trans UK
• 96. Equinox Ski Challenge
• 97. Vasaloppet
• 98. Pittsfield Snowshoe Marathon
• 99. Xtrail Asics trail race series
• 100. The Great amazon River Raft Race