Adam Moreno bent back the top joint of his thumb 84 degrees.
Semlir Kostic uses one hand to bend back his other thumb 150 degrees.
The record was documented on April, 29 2009 in Pittsburgh, Pennsylvania.
Mark Evans balanced a keyboard on the tip of his thumb for 21 minutes, 4.78 seconds. He performed this feat while kneeling.
Alex Stott performed 86 over-the-thumb pen spins in one minute.
Suresh Gaur balanced a computer keyboard on his thumb tip while balancing on a rola bola in one minute, 4.06 seconds.
Karen Wilkinson completed 12 tandem ThumbAround pen spins in 30 seconds.
Brian Pankey balanced a keyboard
on the tip of his thumb for one minute, 25.68 seconds while spinning a
toothbrush in his other hand while kneeling.
Mark Evans balanced a cup of tea atop a three-foot pole on the edge of his thumb for eight minutes, 56.35 seconds.
Doug McManaman balanced seven golf balls on his thumb for 1 minute
and 37.52 seconds.
Callie Bracewell completed 49 reverse thumb pikes in 30 seconds.The feat
was done during the SXSW festival in Austin, Texas.
Steven gripped 10 Nintendo 64 cartridges between his thumb and index finger and held them upside down.
Doug McManaman balanced a sword on a pool cue on his thumb for four
minutes, 27.9 seconds.
Shaikh R. performed 65 consecutive thumb push-ups.
Darryl Learie performed a two-thumb plank exercise without using his other eight fingers. He remained balanced in position for three minutes, 5.71 seconds.
A student camper from iD Tech Camps at UC San Diego won 45
consecutive thumb wrestling matches.
Darryl Learie performed a plank exercise on raw eggs using only his
thumbs. He remained balanced in position for .124 seconds without
breaking the eggs.
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