Answer
Mayra Aguiar is Kayla's primary rival in judo. Aguiar, a Brazilian judoka, is a two-time Olympic medalist and five-time World Champion. Her success and competitive spirit have made her a formidable opponent for Kayla, who is also a renowned judoka with multiple Olympic and World Championship medals. The rivalry between these two athletes has added excitement and intensity to the sport, pushing both women to perform at their best.