American figure skater Andrew Torgashev was at an invitation-only camp organized by U.S. Figure Skating not long ago, a chance for elite athletes preparing for the high-level Grand Prix season to work out any flaws in their performances.

Video above: Erin Jackson going for the gold again at Milan-Cortina

He tried a quad toe loop, a four-revolution jump where skaters launch from the back outside edge of their blade with the help of a toe pick from the other foot. The jump itself is the easiest of skating's six primary jumps, but four revolutions ups the difficulty.

To the naked eye, Torgashev landed it perfectly. To the camera watching him, Torgashev landed a quarter-revolution short.

It was a small error, to be sure, but the kind that could make the difference in whether Torgashev meda

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