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Daniel Eugene Osman (February 11, 1963 – November 23, 1998) (2025). 9780970097361, Puma Press. ISBN 9780970097361 was an American extreme sport practitioner, known for the dangerous sport of free-soloing, rock climbing without ropes or other safety gear. He participated in Rope Jumping, falling several hundred feet from a cliff then being caught by a safety rope, for which his record was over .
Osman appeared in Eric Perlman's Masters of Stone series, free soloing Fire in the Hole (5.12b, now closed) on Cave Rock near Lake Tahoe, Atlantis (5.11+) on The Sorcerer in The Needles in the Sequoia National Forest, and Airy Interlude (5.10b, then 5.9) on The Witch, also in Needles (in California's Sierras). He also is featured crashing a BMX bicycle, ziplining off The Witch, taking a whipper for fun in Yosemite, and on-sight free-soloing Bolder Display of Power (5.11).
Osman gained a wider audience with his 4-minute-25-second speed solo of the route Bear's Reach (5.7), which was featured in Eric Perlman's film Masters of Stone 4. Osman's double dyno over the large gap between two holds for which the route is named has become an iconic image in American rock climbing.
The failure was investigated by the National Park Service with assistance from Chris Harmston, Quality Assurance Manager at Black Diamond Equipment. Harmston concluded that a change in jump site angle probably caused the main jump rope, which consisted of several ropes tied together, to cross and catch on itself at a knot during his fall. This caused the rope to cut itself by melting. Harmston also noted that Osman's rope was in excellent condition, despite it having been left outdoors for some time. Dan Osman's Rope Failure Analysis—Possible cause for his death, google.com; accessed February 11, 2016.
Miles Daisher, who was with Osman when he made the jump, stated that the ropes used in his fatal jump had been exposed to inclement weather—including rain and snow—for more than a month before the fatal jump, but that the same ropes were used for several shorter jumps on the previous and same day.
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