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Houston Astros vs. Philadelphia Phillies

How the prediction-market book is pricing "Houston Astros vs. Philadelphia Phillies" right now, with a side-by-side platform comparison and zero-fee CTAs.

O/U 8.5 100% 1st 5 Innings Spread -1.5 100% 1st 5 Innings O/U 2.5 100% 1st 5 Innings O/U 3.5 100% Volume: $257K Liquidity: $287K Closes: 15 Sept 2026
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Houston Astros vs. Philadelphia Phillies

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via PolyGram) Pick
polygram.ink (preferred broker)
100% 0% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Open the market →
Polymarket (direct)
polymarket.com
100% 0% 0% Geo-blocked in US/UK/EU USDC, on-chain Open the market →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Open the market →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Open the market →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Open the market →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
O/U 8.5100%
1st 5 Innings Spread -1.5100%
1st 5 Innings O/U 2.5100%
1st 5 Innings O/U 3.5100%
1st 5 Innings O/U 4.5100%
O/U 9.5100%
O/U 7.5100%
Houston Astros vs. Philadelphia Phillies85%
Spread -1.565%
O/U 10.560%
Spread -4.551%
Extra Innings50%
O/U 13.550%
O/U 11.536%
O/U 12.530%
Spread -2.519%
Spread -3.510%
Spread -1.55%
Spread -2.52%
NRFI0%
1st 5 Innings Spread -1.50%
1st 5 Innings O/U 5.50%
1st 5 Innings O/U 6.50%

Market context

Market consensus: 100% chance of houston astros vs. philadelphia phillies. Prediction markets aggregate real capital to produce this probability signal. In the upcoming MLB game between the Houston Astros and Philadelphia Phillies, scheduled for September 8 at 6:40PM ET: This market will resolve to "Houston Astros" if the Houston …

Live Data & Statistics

The Polymarket order book prices O/U 8.5 at 100% for "Houston Astros vs. Philadelphia Phillies".

O/U 8.5 100% Other 0%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $257K.

Methodology

We track Houston Astros vs. Philadelphia Phillies across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

How does resolution work?
Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
What's the difference between YES and NO shares?
A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
How fast are USDC deposits?
Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
Do I need to KYC for this market?
On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
How reliable are the quoted odds?
The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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Related Topics

Sports