source: No skater has yet accomplished a quadruple Axel in competition.
target: No skater has ever done a four spin Axel in competition.
references: No skater has ever done a four spin Axel in competition. No skater has done a quadruple Axel in competition. No skater did the quadruple Axel in competition. Right now, no skater has performed a quadruple Axel in competition. No skater has completed a quadruple Axel in competition. No skater has been able to do a quadruple axel in competition. A quadruple Axel has never been performed successfully in competition. No skater has done a quadruple Axel in the competition yet. No skater has been able to do a quadruple Axel in competition. The quadruple Axel hasn't been performed by a skater in competition.