The 100 Toughest    Races in the World

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