Watch a daring gainer flip performed off the edge of a cliff. This short captures the thrill, skill, and precision of one of the most breathtaking freerunning stunts. FBI warns seniors about ...

This short shows a gainer flip performed off a cliff into the water. It focuses on timing, positioning, and the safety ...

Editor's note: This story has been updated. His hashtag said it all: #notagoodidea. Ten years ago this week, “Jackass” TV show star Steve-O did a gainer back flip from the Commerce Street bridge at ...

Back on March 14, 2014, Jackass star Steve-O (a.k.a. Stephen Glover) drew national attention to the San Antonio River after he did a gainer flip, or back-flip, into the shallow waters. "I did a good ...