Rubuta ci gaba ga wannan sakin layi - A watan Agusta McCallum ya yi gasa a Gasar Kasa
inda ta zama ta huɗu a duka, a bayan Simone Biles, Morgan Hurd, da Riley McCusker. Ta kuma gama na huɗu a aikin motsa jiki, na shida a kan sanduna marasa daidaito, kuma na biyar a kan daidaitaccen katako. A ranar 20 ga watan Agusta an kira McCallum a cikin tawagar da za ta fafata a Gasar Pan American tare da Jade Carey, Trinity Thomas, Kara Eaker, da Shilese Jones. A can ta sami zinare a wasan karshe na ƙungiya, duk-kewaye, da sanduna marasa daidaito kuma ta sami tagulla a kan vault da daidaitaccen katako. Tana da maki na huɗu mafi girma a wasan motsa jiki. Sakamakonta na kusan 57,000 a lokacin wasan karshe na kungiyar shine na biyu mafi girman maki na kasa da kasa a duniya a shekarar 2018, a bayan zakaran Biles.