Las Vegas Aces vs Seattle Storm Prediction Market Odds, September 17, 2026
| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
â–¶Aces | -9.5 54%55% | O 178.5 39% | 82%81% | 82% Kalshi |
â–¶Seattle | +9.5 46%45% | U 178.5 61% | 20%20% | 20% Kalshi |
The Las Vegas Aces are an 81.5% moneyline favorite at Climate Pledge Arena on Thursday night (82% on Kalshi, 81% on Polymarket), with the Seattle Storm at 20% on both venues, as of late September 16. The records explain the price: Las Vegas is 27-13 and has already clinched a playoff berth, while Seattle is 8-32, eliminated, and 6-14 at home. Tip is 10:00 PM ET.
Where the Market Has It
The board averages Las Vegas at 81.5% and Seattle at 20%. Kalshi quotes 82% and 20%, Polymarket 81% and 20%, so the two venues sit one point apart on the favorite and agree exactly on the underdog. There is no cross-platform moneyline edge here; Polymarket is the one-point cheaper place to hold the Aces. The combined board carries about $33K in volume, with roughly $19K of that in the Kalshi moneyline alone.
The spread market agrees with the moneyline. Las Vegas -9.5 trades at 54% on Kalshi and 55% on Polymarket, which puts the consensus margin right around 10 points. Kalshi's ladder runs from 79% on Aces -1.5 down to 43% on -12.5 and 19% on -21.5, so the market sees a double-digit Aces win as close to a coin flip, not a lock.
Records and Standings
Las Vegas is 27-13 overall and 14-6 on the road, on a three-game winning streak per ESPN, and sits third in the West behind Minnesota (31-9) and Golden State (29-11). ESPN marks the Aces as having clinched a playoff spot, so Thursday is about seeding position, not qualification. Seattle is 8-32, the worst record in the league, 6-14 at Climate Pledge Arena, and already eliminated from postseason contention. The two teams meet again in Las Vegas on September 20, per ESPN's schedule. Team boards: Las Vegas Aces and Seattle Storm.
The Matchup That Sets the Price
A'ja Wilson leads Las Vegas at 26.0 points and 9.4 rebounds per game on ESPN's season numbers, and Chelsea Gray runs the offense at 6.8 assists. Seattle's answer inside is Dominique Malonga, who averages 17.0 points and 9.0 rebounds, with Natisha Hiedeman leading the Storm at 4.8 assists. The Polymarket prop board lists Wilson's points line at 25.5, a half point under her season average, alongside points, rebounds and assists lines for Jackie Young, Gray and Malonga. Wilson is also on the WNBA MVP market.
The Total
The full-game total sits in the 173 to 174 range. Polymarket prices its 173.5 line at 51% and its 174.5 line at 48%, and Kalshi's ladder has Over 172.5 at 51% and Over 175.5 at 47%, so the two venues point at the same number within a point.
Line Movement
The board's captures cover only the evening of September 16. Across that window Polymarket's Aces moneyline slipped from 83% at 8:02 PM ET to 81% by 8:37 PM ET, while Kalshi held Las Vegas at 82% on every capture from 8:21 PM to 9:51 PM ET. On totals, Polymarket's 173.5 line ticked from 49% to 51% between 8:21 PM and 10:06 PM ET, and Kalshi's Over 178.5 moved from 40% to 39% in the same window after dipping as low as 34%. Nothing on the board shows a move of more than two points on the moneyline.
Related
For the bigger picture, see the WNBA championship market, the Aces season wins market, the Storm season wins market, and every league board on the WNBA hub.
Resolution Criteria
The moneyline resolves to the team that wins the Las Vegas Aces at Seattle Storm game scheduled for Thursday, September 17, 2026 at Climate Pledge Arena (10:00 PM ET tip). Spread markets settle on the final margin of victory and total markets settle on the combined final score of both teams, per the official final result. Kalshi and Polymarket settle these contracts once the game is final on the scheduled date, each under its own contract rules for postponements or cancellations.
Key Factors
- Las Vegas is an 81.5% favorite (82% Kalshi, 81% Polymarket) as of September 16, with no meaningful cross-platform gap
- Aces are 27-13 and 14-6 on the road with a playoff spot clinched; Storm are 8-32, 6-14 at home and eliminated
- A'ja Wilson averages 26.0 points and 9.4 rebounds against Dominique Malonga's 17.0 and 9.0
- Aces -9.5 trades at 54% on Kalshi and 55% on Polymarket, pointing to a roughly 10-point consensus margin
- The total is priced around 173 to 174 points on both venues
- Las Vegas is third in the West, two games behind Golden State and four behind Minnesota, so seeding is the stake
What are the Aces vs Storm odds for September 17, 2026?
As of late September 16, 2026, the Las Vegas Aces are an 81.5% moneyline favorite (82% on Kalshi, 81% on Polymarket) and the Seattle Storm are at 20% on both venues.
Where can I trade the Aces vs Storm game?
The game trades on Kalshi and Polymarket, with moneyline, spread, total and player prop markets. Prediction Genius shows both venues side by side on this page.
What time does Aces vs Storm start and where is it played?
Tip is 10:00 PM ET on Thursday, September 17, 2026 at Climate Pledge Arena in Seattle.
What is the spread and total for Aces vs Storm?
Las Vegas -9.5 trades at 54% on Kalshi and 55% on Polymarket as of September 16. The total is priced around 173 to 174 points, with Polymarket's 173.5 line at 51%.
How do the Aces vs Storm markets resolve?
The moneyline pays the team that wins the game. Spreads settle on the final margin and totals on the combined final score, once the game is final on September 17, 2026.