The 100 Toughest    Races in the World

• 1. Ironman Lake Placid
• 2. Tour D'Afrique
• 3. AuSable River Canoe Marathon
• 4. Tour Divide
• 5. Vasaloppet
• 6. Odyssey Endorphin Fix
• 7. Arrowhead (Footrace)
• 8. Iditarod Trail Invitational
• 9. Tor des Geants
• 10. Hard Rock 100
• 11. North Routt Coureur des Bois
• 12. Leadville Trail 100 (Run)
• 13. Tour de France
• 14. Peak Death Race
• 15. RAAM
• 16. Manhattan Marathon Island Swim
• 17. Leadville Trail 100 (Bike)
• 18. IronMan Hawaii World Championship
• 19. Bigice Race 2011
• 20. Rock and Ice Ultra
• 21. North Face Tour du Mont Blanc
• 22. Yukon River Quest
• 23. Jungle Marathon
• 24. Great Divide Race
• 25. Adirondack 540
• 26. Valley Crest Half Marathon
• 27. The Great amazon River Raft Race
• 28. Barkley Marathons
• 29. Arrowhead (ski)
• 30. Bulldog 50K Ultra Run & 25K Trail Run
• 31. Tour of California
• 32. Hurt 100
• 33. Furnace creek 508
• 34. Mount Rushmore Trail 100
• 35. Trans Rockies
• 36. 24 Hours of Lappe
• 37. Wasatch Front 100
• 38. Planet Adventure
• 39. Marathon De Sable
• 40. Badwater 135
• 41. WildFlower Long Course Triathlon
• 42. BC Bike Race
• 43. St. Croix Coral Reef Swim Race
• 44. Primal Quest
• 45. Gobi March
• 46. Cape Epic
• 47. Kettle Moraine 100
• 48. Canadian Death Race
• 49. McNaughton Park 150 Mile Trail Run
• 50. Western States 100
• 51. La Ruta Maya Belize River Challenge
• 52. Avalon 50 Miles
• 53. Yukon 1000
• 54. Atlantic Rowing Race
• 55. IronMan Lanzarotes (Spain)
• 56. Yukon Quest International Sled Dog Race
• 57. Lifecycle Challenge
• 58. Vapor Trail 125
• 59. Devizes to Westminster
• 60. Race Across South Africa (RASA)
• 61. UltraLadies Training Runs
• 62. Texas Water Safari
• 63. Race Across the West
• 64. Trans UK
• 65. Equinox Ski Challenge
• 66. Bighorn 100
• 67. McKenzie River 50
• 68. Grand Tetons 100
• 69. Pittsfield Snowshoe Marathon
• 70. IronMan Canada
• 71. Atacama Crossing
• 72. Peak Races 200 Mile Funeral Run
• 73. MegaDose 4-Day Adventure
• 74. Gold Rush Adventure Challenge
• 75. Iditarod
• 76. Peak Ultra Challenge
• 77. Arctic Circle Race
• 78. Horsetooth Open Water 10K
• 79. The Big Swim
• 80. Grand Defi des Glaces
• 81. Oosik Classic Ski Race
• 82. La Traversee du Lac Saint-Jean
• 83. Alcatraz Challenge
• 84. Avon Descent
• 85. Untamed VA
• 86. Raid the North Extreme
• 87. Bear 100
• 88. Polar Challenge
• 89. Massanutten Mounta Trails 100
• 90. Plain 100
• 91. MT Hood Cycling Classic
• 92. La Ruta de Los Conquistadores
• 93. Crocodile Trophy
• 94. Cascade Cream Puff
• 95. Soggy Bottom 100
• 96. The BEAR (Beach Extreme Adventure Race)
• 97. Herc Open Hiking Race
• 98. Coastal Crawl 10K Swim
• 99. Overmountain Extreme
• 100. Zane Grey 50
• 101. Silver State 50
• 102. Xtrail Asics trail race series
• 103. White River 50
• 104. Mt Hood PCT 50
• 105. Isuzu Berg River
• 106. Dusi Canoe Marathon
• 107. Swim Miami
• 108. Breckenridge 100
• 109. Leona Divide 50
• 110. Bridge to Bridge Swim
• 111. DaIsland Canoe Marathon
• 112. Quicksilver 50
• 113. Kayak the Nile