The Phoenix Mercury opened the 2026 WNBA season with a statement win over the defending champion Las Vegas Aces, but couldn't sustain that momentum in their second game of a back-to-back set. On Sunday, May 10, the Mercury fell to the Golden State Valkyries 95-79 at Chase Center in San Francisco.

After an emotional victory just 24 hours earlier, Phoenix came out flat and struggled to find their rhythm. The Valkyries seized control with a dominant 20-11 second quarter, building a 48-31 halftime lead that put the Mercury on their heels.

To their credit, Phoenix showed resilience. The Mercury stormed back in the third quarter, outscoring Golden State 31-18 to cut the deficit to just six points heading into the final frame. It was the kind of fight that had served them well against the Aces.

But the Valkyries had answers. Golden State closed the game with a commanding 29-17 fourth quarter, fueled by a defense that forced 17 Mercury turnovers while committing only 10 themselves. The disparity in ball security proved decisive, as Phoenix couldn't overcome the extra possessions they gifted their opponent.

For the Mercury, the split feels like a missed opportunity but also a sign of potential. Taking down the defending champions on opening night showed what this team is capable of when firing on all cylinders. The challenge now will be finding consistency, especially in a league where back-to-backs test both stamina and mental toughness.

As the season unfolds, fans will be watching to see how Phoenix bounces back. Every game is a chance to build chemistry and refine their game plan—and this early test could pay dividends down the stretch.