| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
Atlanta | -7.5 — | O 175.5 — | 100%100% | 100% Kalshi |
Mercury | +7.5 — | U 175.5 — | 0%0% | — |
| Spread | Total | Moneyline | Best ML | |
|---|---|---|---|---|
Atlanta | -7.5 — | O 175.5 — | 100%100% | 100% Kalshi |
Mercury | +7.5 — | U 175.5 — | 0%0% | — |
Atlanta (23-13) is the road favorite at 68c on Kalshi and 66c on Polymarket against Phoenix (13-23) at 33c and 35c, a 2c cross-platform gap that leaves the two exchanges effectively in agreement. The spread ladder puts the true number between Atlanta -4.5 (53c on Kalshi) and -5.5 (49c on Polymarket), and the 175.5 total prices at 52c on both books, matching the 175.1 sum of the two teams scoring averages. The board holds $104.7K in lifetime volume and resolves when the game goes final in Phoenix on the night of August 22, 2026.
Atlanta lands in Phoenix at 23-13 and is priced exactly like the road favorite that record implies, 68c on Kalshi and 66c on Polymarket. The Dream vs Mercury board carries $104.7K in lifetime cross-platform volume across both exchanges and settles when the game goes final at Mortgage Matchup Center on the night of August 22, 2026. Phoenix, 13-23 and sixth in the Western Conference, is the cheapest home side on the WNBA slate at 33c on Kalshi and 35c on Polymarket.
The scoring margins carry this board. Atlanta averages 91.2 points and allows 85.7, a net of plus 5.5 that has the Dream second in the Eastern Conference. Phoenix averages 83.9 and allows 87.4, a net of minus 3.6. That 9.1-point gap in net scoring margin is most of the reason a road team is trading in the high 60s.
Form points the same direction. Atlanta is 5-1 over its last six, including a 97-82 win at Las Vegas on August 19 and a 124-88 win at Los Angeles on August 21. Phoenix is 2-4 over the same stretch and last played on August 16, an 88-85 loss at Portland. The rest edge belongs entirely to the Mercury: six days off against an Atlanta team playing the second night of a back-to-back and the third stop of a Western road trip. The market has not paid much for that edge, which is the single most interesting thing about the price.
The season series is 2-0 Atlanta, 82-80 on May 24 and 96-82 on August 5, both played in Atlanta. This is the first meeting at Mortgage Matchup Center, so the head-to-head offers no read on Phoenix at home.
Availability cuts against the home side. Kelsey Plum is listed out for Phoenix, leaving Kahleah Copper (20.5 points per game) as the only Mercury player averaging over 15 and routing the offense through Alyssa Thomas (14.9 points, 7.5 rebounds, 8.2 assists). Atlanta is without Brionna Jones but still starts Allisha Gray at 19.5 points, Angel Reese at 15.9 points and 11.9 rebounds, and Jordin Canada at 7.5 assists. Reese against a Phoenix front line that already conceded 96 points to this team in August is the matchup the total is built around.
On movement, the board has been steady. Kalshi's Atlanta leg has printed 68c across 80 captures since the series began late on August 21, and Polymarket's has traded a narrow 65c to 67c band across 42 captures and sits at 66c. Over the same window the sportsbook number moved from Atlanta -4.5 to -5.5 and the moneyline from -205 to -218. The exchanges held while the book walked toward them. The snapshot series only reaches back about 11 hours, so this is an overnight read, not a full open-to-close story.
Cross-platform, the two books agree. Atlanta is 68c on Kalshi and 66c on Polymarket, Phoenix 33c and 35c, a 2c gap on both sides. That is inside the quoted spread on each venue and does not point to either exchange having the better read. Polymarket is the marginally cheaper place to buy Atlanta, Kalshi the marginally cheaper place to buy Phoenix, and neither difference is worth much beyond execution preference.
Kalshi runs the full spread ladder: Atlanta -1.5 at 62c, -4.5 at 53c, -7.5 at 41c, -10.5 at 31c, and -13.5 at 22c. The -4.5 rung is the busiest at $7.0K in lifetime volume. Polymarket quotes a single spread, Atlanta -5.5 at 49c. Those two prices bracket the same conclusion: the coin-flip point sits between 4.5 and 5.5 points, which is where the sportsbook number landed as well. Three independent venues agreeing on the number is the strongest structural signal on this board.
The total is priced at consensus. Kalshi has Over 175.5 at 52c and Polymarket has the same 175.5 line at 52c, with Polymarket's 176.5 alternate at 51c. Kalshi's ladder runs Over 172.5 at 57c up through Over 178.5 at 43c. The two teams' scoring averages sum to 175.1, so the market has essentially posted the arithmetic and declined to lean either way. The case for the over is Atlanta's output, 97, 124, and 104 points in three of its last five games. The case for the under is Phoenix at 83.9 points per game without Plum.
Polymarket carries the player props, all quoted close to season means and all sitting on effectively zero traded volume. Reese rebounds Over 12.5 prices at 53c against an 11.9 average, Reese points Over 15.5 at 51c against 15.9, Rhyne Howard points Over 18.5 at 51c, Thomas assists Over 8.5 at 42c against 8.2, and Gray points Over 19.5 at 44c against a 19.5 average. Treat these as posted lines rather than markets with a position, because none has attracted enough flow to move.
Tip is 10:00 PM ET on August 22, 2026 (7:00 PM local time in Phoenix) at Mortgage Matchup Center, broadcast on WNBA League Pass. The moneyline resolves to the team that wins the game, with each winning contract paying $1 per share and the losing side paying $0. Spread and total contracts settle against the official final score, overtime included. Kalshi lists the game under KXWNBAGAME-26AUG22ATLPHX with matching KXWNBASPREAD and KXWNBATOTAL series, and both platforms settle within hours of the final whistle. If the game is postponed, contracts stay open until it is played or void under each platform's postponement rules.
The Dream's price here feeds the 2026 WNBA championship market, where Atlanta's second-place standing in the East is the argument for the position, and the 2026 WNBA MVP market, where Allisha Gray and Angel Reese both have cases built on nights like this one. The other marquee game on the same slate is Fever at Liberty, a 24-13 versus 22-15 matchup priced far tighter than this one. The Atlanta Dream hub and the Phoenix Mercury hub collect every open contract on either club, and the WNBA prediction market hub carries the full league board.
The moneyline resolves to the team that wins Atlanta Dream at Phoenix Mercury, played at Mortgage Matchup Center in Phoenix with a 10:00 PM ET tip on August 22, 2026 (7:00 PM local). Each winning team contract pays $1 per share and the losing contract resolves to $0. Spread contracts settle against the official WNBA final score with the listed handicap applied, and total contracts settle against the combined final score, overtime included in both cases. Kalshi lists the game under the KXWNBAGAME-26AUG22ATLPHX series with parallel KXWNBASPREAD and KXWNBATOTAL series for the derivative lines, and Polymarket settles its moneyline, spread, and player props off the same official final. If the game is postponed, contracts remain open until it is played or are voided under each platform's postponement rules.
As of the morning of August 22, 2026, Atlanta trades at 68c on Kalshi and 66c on Polymarket, with Phoenix at 33c and 35c. The board has held that range across more than 80 Kalshi captures since late on August 21.
Atlanta is favored at roughly 67% implied probability across the two exchanges. The spread market puts the margin between 4.5 and 5.5 points, with Kalshi pricing Atlanta -4.5 at 53c and Polymarket pricing Atlanta -5.5 at 49c.
Tip is 10:00 PM ET on August 22, 2026 at Mortgage Matchup Center in Phoenix. Moneyline, spread, and total contracts all settle off the official final score within hours of the game ending.
Both Kalshi and Polymarket list this game, and the combined board carries $104.7K in lifetime volume. Kalshi runs the deeper spread and total ladders, while Polymarket carries the player props on Angel Reese, Rhyne Howard, Allisha Gray, and Alyssa Thomas.
Watch the Phoenix injury report for any change to Kelsey Plum, who is currently listed out, and watch whether Atlanta rests starters on the second night of a back-to-back. Either development moves a 68c favorite faster than anything in the box score.