Hammon led the Las Vegas Aces to the 2022 WNBA title in her debut season as head coach, a first for a rookie coach.
On September 18, 2022, Becky Hammon, in her first season as head coach of the Las Vegas Aces after leaving the Spurs organization, guided the team to a decisive 3–1 series victory over the Connecticut Sun in the WNBA Finals, capturing the franchise's first-ever WNBA championship.
Hammon's move from a long-tenured NBA assistant role to a head coaching position in the WNBA was seen by many as a surprising step, given her status as the presumptive frontrunner to become the NBA's first female head coach. Instead, she chose to return to the WNBA, signing a lucrative contract with the Aces and immediately delivering results, becoming the first rookie head coach in WNBA history to win a championship in their debut season.
The championship run showcased Hammon's rapid tactical impact, as she transformed a talented Aces roster — led by MVP A'ja Wilson — into a dominant, cohesive championship team. Her achievement earned her the 2022 WNBA Coach of the Year award and cemented her reputation as one of the most sought-after coaching minds in basketball, regardless of league or gender. The title further validated the years of NBA experience she brought back to the women's game, and it added another milestone to a career defined by breaking new ground at every level of professional basketball.