The triple Axel is the first and hardest jump in Amber Glenn’s programs, the jump only she completed in Wednesday’s short program at the World Figure Skating Championships in Prague.

It is a high-value jump of such relative difficulty that Japan’s Ami Nakai, the Olympic bronze medalist, was the only other woman among the 33 total competitors even to attempt it, and Nakai managed just a double.

It is also a jump that Glenn now has mastered, landing 12 of 13 attempts this season prior to worlds, getting positive grades of execution (GOEs) on all but three.

But when Glenn found herself leaning too far forward on the Axel takeoff after having botched two of three attempts in the warm-up before the short, you could understand why this talented skater who has battled self-doubt throughout her long career might begin to wonder if this was going to be déjà vu all over again.

Would her chances at a medal disappear after a big mistake in the short program, as had happened in last month’s Olympics and at previous world championships, when she had to go into the free skate looking for redemption rather than hardware?