Astros vs Yankees Prediction Market Odds, August 25, 2026
| Spread | Total | ML | Best ML | |
|---|---|---|---|---|
▶Astros | +3.5 78% | O 1 53%53% | 28%25% | 28% Kalshi |
▶Yankees | -3.5 22% | U 1 47%47% | 38%36% | 38% Kalshi |
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New York is the 57.5c average favorite (58c Kalshi, 57c Polymarket) over Houston at 43c on both books for the 7:05 PM ET opener at Yankee Stadium. The Yankees are 74-56 and 33-28 at home; the Astros are 65-66 and 32-31 on the road, yet still tied with Texas atop the AL West. The board has traded about $22.0K, with $20.1K of it in the two moneyline contracts and the total priced at 9 runs.
New York is the 58c favorite on Kalshi and 57c on Polymarket for the opener of a three-game set with Houston at Yankee Stadium, first pitch 7:05 PM ET on August 25, 2026. The Yankees come in 74-56 overall and 33-28 at home; the Astros are 65-66 and 32-31 on the road, and the Yankees are 9.5 games better in the standings, worth roughly 15c on a single-game moneyline. The board has traded about $22.0K, with $20.1K of it sitting in the two moneyline contracts.
Astros vs Yankees Market Context
The moneyline reads Yankees 58c on Kalshi and 57c on Polymarket, with Houston at 43c on both books. Kalshi's pair sums to 101c and Polymarket's sums to exactly 100c, so the Yankee side is a cent cheaper on Polymarket while the Astros side prices identically at 43c. A 1c gap on the favorite is inside normal two-book noise, not a divergence signal. Houston's 43c is the heavier contract by volume at $13.9K against $6.2K on the Yankee side, which is the shape you see when the underdog draws the speculative money and the favorite gets bought in size less often.
The standings make this less lopsided than the records suggest. Houston is 65-66 and still tied with Texas at the top of the AL West, so a sub-.500 team walks into the Bronx leading a division. New York sits second in the AL East, 3.5 games behind Tampa Bay, with the wild card still the more realistic path. Form splits the same way as the record: the Yankees are 6-4 over their last ten and beat Toronto 8-3 on August 23, while the Astros are 4-6 and dropped two straight to the Athletics, including a 7-6 loss on August 23.
A note on the price history: the board carries a single snapshot capture across every contract, both books stamped at the same moment, so there is no series here to read a move from. That is a data-coverage gap on a next-day board, not evidence the line has held still.
The Astros vs Yankees Pitching Matchup
New York starts Will Warren (8-6, 4.43 ERA). Houston counters with Ethan Pecko (4.91 ERA), who carries no decisions on his ledger, and that inexperience is the single largest reason the total sits where it does rather than lower. Neither starter is a front-line arm, and the market has priced accordingly.
Polymarket's three-way first-five-innings market is the cleanest read on how much of this game the books expect the starters to decide: Yankees 49c, Astros 38c, tied 12c. Strip the tie out and New York is about 56% of the two decisive outcomes, essentially the same read as its 57.5c full-game average. The market sees no meaningful edge for either bullpen. The first-five run lines agree, with the Yankees at -1.5 for 38c on Kalshi and 36c on Polymarket, and Houston at -1.5 for 28c and 25c.
Astros vs Yankees Run Line and Total
The full-game run line has the Yankees -1.5 at 40c on both books and the Astros -1.5 at 33c on Kalshi and 32c on Polymarket. Those two prices together imply roughly a 27% chance the game is decided by exactly one run, which is a normal August baseball number. The deeper rungs are Kalshi-only inventory: Yankees -2.5 at 31c, Yankees -3.5 at 22c, and Houston -3.5 at 17c.
The total is the sharper market to watch. Over 9.5 runs prices at 45c and Over 8.5 at 56c, putting the market total right at 9 and leaning slightly under the 9.5 line. Over 10.5 sits at 38c. The most active non-moneyline contract on the board is the first-inning run market at 53c on $1.2K traded, which is close to a coin flip and reflects two starters who have not been reliable through the opening frame.
Polymarket's depth on this board is thin outside the moneyline: it carries the two -1.5 run lines and a pair of -2.5 rungs, and the rest of the ladder is Kalshi inventory only. Anyone comparing prices past the moneyline is effectively reading one book.
When the Astros vs Yankees Market Resolves
The moneyline resolves to the team that wins the game at Yankee Stadium on August 25, 2026, scheduled for 7:05 PM ET. The run line and total settle against the official final score, including extra innings. Kalshi and Polymarket both settle once the game is official and the result is final, typically within hours of the last out. If the game is postponed and replayed on a later date, both platforms settle against the makeup game or void per their published rules; a suspended game settles on the completed score.
Key Astros vs Yankees Catalysts
Starting pitching gap: Will Warren (8-6, 4.43 ERA) against Ethan Pecko (4.91 ERA), who has no decisions on his record, is the widest experience gap on the board.
Total priced at 9: Over 9.5 at 45c and Over 8.5 at 56c put the true number at 9, so any lineup or weather news moves this contract before it moves the moneyline.
Two-book pricing: the Yankee side is 58c on Kalshi and 57c on Polymarket while Houston is 43c on both, so Polymarket's pair sums to 100c and Kalshi's to 101c.
AL West stakes: Houston is 65-66 and tied with Texas at the top of its division, so every road loss here is a swing in the AL West market.
Volume concentration: $20.1K of the board's $22.0K sits in the moneyline, so the run line and total ladders are thin and move on small trades.
Related Astros vs Yankees Markets
The season-long versions of this game price the same two clubs on longer horizons. New York's postseason odds trade on the Yankees playoff market, and Houston's sit on the Astros playoff market, where a sub-.500 record and a division lead pull in opposite directions. The division races are live on both sides: the AL East market has New York chasing Tampa Bay by 3.5 games, and the AL pennant market carries every American League contender in one board. Full team boards live at the Yankees hub and the Astros hub, and every game on the slate is on the MLB hub.
Resolution Criteria
The moneyline resolves to the team that wins the game at Yankee Stadium on August 25, 2026, scheduled for 7:05 PM ET. Each winning contract pays $1 per share and the losing side settles at $0. Run line contracts settle against the official margin of victory and total contracts against the combined official final score, both including extra innings. Kalshi and Polymarket settle once the game is official and the result is final. A postponed game settles against the rescheduled makeup contest or voids per each platform published rules, and a suspended game settles on the completed official score.
Key Factors
- Will Warren (8-6, 4.43 ERA) vs Ethan Pecko (4.91 ERA, no decisions) is the widest starter experience gap on the board
- Total priced at 9 runs (Over 9.5 at 45c, Over 8.5 at 56c) is the contract lineup and weather news moves first
- Yankee side is 58c on Kalshi and 57c on Polymarket while Houston prices 43c on both books
- Houston is 65-66 and tied with Texas atop the AL West, so road losses carry division stakes
- Moneyline holds $20.1K of the board $22.0K, leaving run line and total ladders thin
- Polymarket carries only the -1.5 and -2.5 run line rungs; deeper alt lines are Kalshi-only inventory
What are the current Astros vs Yankees odds?
As of August 25, 2026, the New York Yankees are 58c on Kalshi and 57c on Polymarket, a 57.5c average. The Houston Astros price at 43c on both platforms.
Who is favored in Astros vs Yankees?
The Yankees are favored at an implied probability near 58%. They are 74-56 with a 33-28 home record, while Houston is 65-66 and 32-31 on the road.
Where can I trade the Astros vs Yankees market?
Both Kalshi and Polymarket list the game. Kalshi carries the deeper board with run lines out to -3.5, team totals, and a first-inning run market at 53c; Polymarket lists the moneyline, two run line rungs, and a three-way first-five-innings market.
When does the Astros vs Yankees market resolve?
It resolves on the outcome of the August 25, 2026 game at Yankee Stadium, scheduled for 7:05 PM ET, and settles on both platforms once the result is official.
What is the run total for Astros vs Yankees?
The market total sits at 9 runs. Over 9.5 prices at 45c, Over 8.5 at 56c, and Over 10.5 at 38c, so the board leans slightly under 9.5.
What should I watch before Astros vs Yankees resolves?
Watch the confirmed lineups and the total, which is the most sensitive contract at 9 runs, plus any bullpen usage news given Ethan Pecko has no decisions on his record and is unlikely to go deep.