Seattle Storm vs Las Vegas Aces Picks, Prediction, Odds, and Line Movement for Sunday September 20 2026

Today's Seattle Storm vs Las Vegas Aces picks for Sunday, September 20, 2026, come from Michelob ULTRA Arena in Las Vegas. Seattle enters at 8-34 after a 70-57 loss to Golden State on Saturday night, while Las Vegas is 28-13 and has had two full days to prepare since routing Seattle 114-77 on Thursday.

Las Vegas is favored by 16.5 points on the current board, with the total set at 176.5. Bettors reviewing Sunday's WNBA picks have to decide how much of Thursday's blowout should carry into the rematch, especially with Seattle playing on the second night of a back-to-back. The available WNBA player props should also reflect the Storm's depleted rotation before the 9:00 PM EDT tipoff.

Best Available Odds for Seattle Storm vs Las Vegas Aces

• Spread: Seattle Storm +16.5 | Las Vegas Aces -16.5
• Total: 176.5

Game Info

• Date: Sunday, September 20, 2026
• Time: 9:00 PM EDT / 6:00 PM PDT
• Location: Michelob ULTRA Arena, Las Vegas, Nevada
• TV: USA Network, CW Seattle, Prime Video-Seattle, Vegas 34
• Key Availability: Seattle is without Jordan Horston, Jade Melbourne, Ezi Magbegor and Katie Lou Samuelson. Las Vegas remains without NaLyssa Smith and Janiah Barker for the season.

Seattle Storm vs Las Vegas Aces Preview

Seattle could not generate anything offensively Saturday in San Francisco.

The Storm scored only 57 points in a 70-57 loss to Golden State and managed just six in the second quarter. Golden State became the sixth straight opponent to hold Seattle below 70 during the Valkyries' defensive run.

That result matters immediately because the Storm now travel to Las Vegas without a day off.

Seattle is 8-34 and only 2-19 on the road. The roster is also significantly thinner than it was earlier in the season.

Magbegor and Samuelson are out for the year, Horston remains sidelined and Melbourne is unavailable. Those absences remove size, shooting and ball-handling from a team that already struggles to score efficiently.

Flau'jae Johnson has become the primary individual creator. She scored 25 in Thursday's loss to Las Vegas and remains Seattle's best chance to produce offense against elite opponents.

Dominique Malonga has also taken on a larger role inside. Her rebounding gives Seattle a way to extend possessions, but she now has to deal with A'ja Wilson after spending Saturday battling Golden State's frontcourt.

Las Vegas enters with a very different rest profile.

The Aces last played Thursday, when they beat Seattle 114-77 in one of their most complete offensive performances of the season.

Wilson, Jackie Young and Chelsea Gray controlled the game from the opening stages, and Seattle never found a defensive answer once Las Vegas began creating paint touches.

That was the second Las Vegas win over Seattle this season.

The Aces also won 101-91 on June 8, giving them a 2-0 series record with margins of 10 and 37.

Those results explain why the spread has reached the mid-teens.

The current market ranges from Las Vegas -15.5 to -16.5, while the captured board sits at -16.5.

The total has moved higher than some earlier numbers. Markets were available around 174.5 and 175.5 before the number settled near 176.5, with some books even touching 177.5.

That rise creates the more interesting betting decision.

Seattle is 19-23 O/U and has gone Under in seven of its last 10. The Storm just played a 127-point game less than 24 hours before Sunday's tip.

Las Vegas is 20-20 O/U, essentially neutral for the season.

The Aces can threaten any Under because of their offensive ceiling. Thursday's 114 points are the obvious warning.

The matchup is different Sunday because Seattle's energy level should be even lower, but that can reduce pace as much as it reduces defense.

The Storm have no reason to play a track meet. Their best chance to stay competitive is to use longer possessions, feed Malonga inside and keep Las Vegas from generating repeated transition opportunities.

Las Vegas can also win without pushing the pace.

The Aces are 13-7 at home and have already clinched a playoff berth. They need seeding wins, but they do not need to run Wilson, Gray and Young into heavy fourth-quarter minutes if the game is controlled.

The WNBA betting trends support the lower-scoring angle more than the spread.

Seattle has covered 21 of 40 games, while Las Vegas is 20-19 ATS. Neither side owns an overwhelming season-long spread edge.

The Under gets additional support from Seattle's current personnel and schedule.

The Storm are playing their second game in roughly 24 hours, and Saturday's loss required them to grind through a physical defensive matchup before traveling.

That makes it difficult to project Seattle into the 80s unless Las Vegas completely loses focus.

Aces bettors also have to pay a premium after Thursday's 37-point win. The difference between laying 10.5 in Seattle and 16.5 in Las Vegas is six full points in three days.

The total has also moved, but the direction gives Under bettors more protection.

If Las Vegas scores 100 again, Seattle can still keep the game below 176.5 with anything under 77.

That is realistic. The Storm scored 77 Thursday, then only 57 Saturday, and remain without several rotation pieces.

The Aces can dominate the matchup through defense and interior efficiency without needing another 114-point explosion.

Game Thesis: Las Vegas should win comfortably, but laying 16.5 after Thursday's blowout is less attractive than attacking the total. Seattle is short-handed, exhausted and coming off a 57-point performance, while the market has lifted the total into the mid-170s. Under 176.5 is the preferred wager.

Seattle Storm vs Las Vegas Aces Best Bet - Total: Under 176.5

Seattle's offense is the key to the wager.

The Storm have stayed Under in seven of their last 10 and now play the second night of a back-to-back without several regular rotation players.

Las Vegas can still score into the high 90s or low 100s, but the Aces do not need to maintain Thursday's extreme pace for four quarters.

If the game becomes another blowout, both teams have reasons to shorten star minutes late.

A final around 99-71 leaves a comfortable gap below 176.5 while still reflecting a decisive Las Vegas win.

Under 176.5 is the strongest position.

Prediction: Las Vegas Aces 99, Seattle Storm 71