| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
â–¶Liberty | -3.5 52% | O 183.5 45% | 62%63% | 63% Polymarket |
â–¶Sky | +3.5 48% | U 183.5 55% | 39%38% | 39% Kalshi |
| Spread | Total | Moneyline | Best ML | |
|---|---|---|---|---|
â–¶New York Liberty | -3.5 | O 183.5 | 63% Polymarket | |
â–¶Chicago Sky | +3.5 | U 183.5 | 39% Kalshi |
New York is the 62.5c favorite over Chicago on the Liberty vs Sky moneyline, 62c on Kalshi and 63c on Polymarket, a 1c cross-platform gap that offers no venue edge. The Liberty are 22-14 but just 10-9 on the road, and the Sky are 13-22 yet 8-9 at Wintrust Arena, which is why the spread sits near four points rather than double digits. The board carries $24.9K in lifetime volume across both platforms and resolves when the game goes final on August 18, 2026.
New York arrives at Wintrust Arena at 22-14 while Chicago sits at 13-22, nine wins apart in the standings, and the market prices that gap as a 62c to 63c favorite rather than anything close to a lock. The Liberty vs Sky board carries $24.9K in lifetime volume across Kalshi and Polymarket, with $17.0K of that sitting on the New York moneyline alone. The number has barely moved in the last 24 hours, which is its own signal on a game the market already considers correctly priced.
New York is the 62.5c favorite on the blended moneyline, 62c on Kalshi and 63c on Polymarket. A 1c cross-platform gap is inside the noise band on a game board this size, so there is no meaningful price difference between the two venues on the winner market tonight. Chicago trades at 38.5c, 39c on Kalshi and 38c on Polymarket. The two sides sum to 101c on Kalshi and 101c on Polymarket, the normal exchange vig on a two-way game market.
The movement story is that there is no movement. The Kalshi New York line opened at 64c roughly a day out, traded a 62c to 65c band through the overnight session, and settled back to 62c. Polymarket held 63c the entire window with a single tick to 64c. A line that refuses to drift 24 hours before tip is a line the order flow agrees with, and it means the entry price now is the entry price the market has had all day.
The records underneath support the read without justifying a bigger number. New York is 22-14 overall but only 10-9 on the road against 12-5 at home, and that road split is the single best argument against laying a heavy spread here. Chicago is 13-22 overall but 8-9 at Wintrust Arena against 5-13 away, so home is where the Sky season has been least bad. The market is pricing a 62c road favorite, not a 70c one, and the venue splits are why.
Breanna Stewart leads New York at 20.7 points and 8.2 rebounds per game, with Jonquel Jones at 9.4 rebounds and Pauline Astier at 3.5 assists. Chicago runs through Kamilla Cardoso at 14.8 points and 8.7 rebounds, with Natasha Cloud at 5.0 assists. The Stewart and Jones frontcourt against Cardoso is the matchup that decides the rebounding margin, and rebounding margin is the variable that has swung most of Chicago's home results this season.
The Kalshi spread ladder is the most informative part of this board. New York -1.5 trades at 58c, -3.5 at 52c, -6.5 at 39c, -9.5 at 30c, and -12.5 at 21c. The 50c crossing point falls just past -3.5, which puts the market's true line at roughly four points. Polymarket lists New York -4.5 at 47c, and interpolating the Kalshi ladder to -4.5 lands near 48c. The two books are describing the same four-point game from opposite directions, and DraftKings has the same game at New York -3.5.
The total is priced around 181. Kalshi has Over 180.5 at 51c and Over 183.5 at 46c, with the ladder running from Over 171.5 at 72c up through Over 192.5 at 25c. Polymarket has 181.5 at 52c and 182.5 at 48c. That is a tight, coherent curve across both venues, so the total is not where the disagreement lives tonight. Neither is the spread. On this board the only genuine question is whether four points is the right number for a road favorite that has been a coin flip away from home.
Player props sit on Polymarket. Cardoso points Over/Under 13.5 trades at 51c against a 14.8 season average, which is the market discounting her production for a matchup against Jones and Stewart. Stewart assists Over/Under 3.5 is at 48c and Cloud assists Over/Under 6.5 is at 38c against her 5.0 season average. The Cardoso line is the prop that connects directly to the game result, since Chicago covering at home has historically required her to clear that number.
The moneyline resolves to the team that wins the game at Wintrust Arena in Chicago on August 18, 2026, with tip scheduled for 8:00 PM CT. The spread and total contracts settle against the official final score, including any overtime. Both platforms settle within hours of the game going final. A postponement moves settlement to the rescheduled date under each platform's rules, and a cancellation voids the contracts at the platform's discretion.
Rebounding margin: Cardoso at 8.7 boards per game against a New York frontcourt of Jones at 9.4 and Stewart at 8.2 is the possession battle that decides whether Chicago covers.
New York road form: the Liberty are 10-9 away against 12-5 at home, the clearest structural argument against the four-point number.
Chicago home form: the Sky are 8-9 at Wintrust against 5-13 on the road, so the venue is worth real points to the underdog.
Line stability: Kalshi opened at 64c and settled at 62c with Polymarket flat at 63c, so late steam would be a genuine signal rather than routine drift.
Total placement: the Over 180.5 contract at 51c is the closest thing on this board to a true coin flip, and both platforms agree on it.
Playoff stakes: New York is chasing seeding while Chicago is playing out a 13-22 season, a motivation gap the price only partly reflects.
The season-long context for both sides trades on separate boards. New York's playoff market and Chicago's playoff market price what each of these results is actually worth, and the New York win total is the board a road win here moves most directly. The 2026 WNBA championship market is where New York's tier gets priced against Las Vegas and Indiana. Full team boards live at the New York Liberty hub and the Chicago Sky hub, and every game on the slate is on the WNBA hub.
The moneyline resolves to the team that wins the New York Liberty at Chicago Sky game played at Wintrust Arena in Chicago on August 18, 2026, with tip scheduled for 8:00 PM CT. Each winning team contract pays $1 per share and the losing side settles at $0. Spread contracts settle against the official final margin and total contracts against the official combined final score, both including overtime. Kalshi and Polymarket settle from the official WNBA box score within hours of the game going final. If the game is postponed, settlement moves to the rescheduled date under each platform rules; if it is canceled outright, contracts are voided and refunded per platform-specific rules.
As of August 18, 2026, New York is the 62.5c favorite on the blended moneyline, trading at 62c on Kalshi and 63c on Polymarket. Chicago is at 38.5c, 39c on Kalshi and 38c on Polymarket.
The New York Liberty, at an implied probability of roughly 62%. New York is 22-14 on the season against a Chicago Sky team that is 13-22, though the Sky are 8-9 at home at Wintrust Arena.
Both Kalshi and Polymarket list this game. Kalshi carries the deeper spread and total ladders, running from New York -1.5 at 58c through -12.5 at 21c, while Polymarket carries the player props including Kamilla Cardoso points Over/Under 13.5 at 51c.
The market line is roughly New York -4. Kalshi has New York -3.5 at 52c and -6.5 at 39c, Polymarket has -4.5 at 47c, and DraftKings lists New York -3.5. The total sits near 181, with Kalshi Over 180.5 at 51c and Polymarket 181.5 at 52c.
It resolves after the game at Wintrust Arena on August 18, 2026, with tip at 8:00 PM CT. Both platforms settle from the official final score within hours of the game ending.
Watch the rebounding matchup between Cardoso at 8.7 boards per game and the New York pair of Jones at 9.4 and Stewart at 8.2, and watch for late line movement. The Kalshi price has held a 62c to 65c band for 24 hours, so any break outside it before tip is meaningful information.