The entire series builds towards the Family Wizard Competition, which takes place in the finale, "Who Will Be the Family Wizard?". The competition is revealed to be more than a test of magical skill; it is a test of character. In a major twist, the siblings are temporarily disqualified when they choose to abandon the competition to rescue their friends, Harper and Zeke. This is revealed to have been the real test: a measure of their family bond, which they pass.
In the final round, a race through a labyrinth, Justin is the first to emerge and is declared the winner. However, he immediately forfeits, explaining that Alex was ahead of him but turned back to help him when he became trapped by tree roots. Recognizing her selfless act, Justin insists she is the true winner. Consequently, Alex is officially named the Russo Family Wizard.
In a final turn of events, Professor Crumbs announces his retirement as the headmaster of WizTech. Impressed by Justin's integrity and vast knowledge, he offers the position to him, which comes with full wizarding powers. This allows both Alex and Justin to keep their magic. Max, the only sibling left without powers, is made the future owner of the Waverly Sub Station, a role he happily accepts. Thus, the series concludes with each sibling finding their own successful and fulfilling path, subverting the 'winner-take-all' premise that drove the show's central conflict.