Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| NRFI | 100% |
| O/U 9.5 | 100% |
| 1st 5 Innings O/U 2.5 | 100% |
| 1st 5 Innings O/U 3.5 | 100% |
| 1st 5 Innings O/U 4.5 | 100% |
| 1st 5 Innings O/U 5.5 | 100% |
| 1st 5 Innings O/U 6.5 | 100% |
| O/U 10.5 | 100% |
| O/U 11.5 | 100% |
| O/U 12.5 | 100% |
| O/U 13.5 | 63% |
| O/U 17.5 | 57% |
| O/U 14.5 | 54% |
| 1st 5 Innings Spread -1.5 | 51% |
| Houston Astros vs. Washington Nationals | 50% |
| 1st 5 Innings Spread -1.5 | 50% |
| 1st 5 Innings Spread -2.5 | 50% |
| Spread -3.5 | 50% |
| Spread -4.5 | 50% |
| O/U 16.5 | 50% |
| 1st 5 Innings Spread -2.5 | 49% |
| O/U 18.5 | 47% |
| Extra Innings | 46% |
| O/U 15.5 | 45% |
| O/U 19.5 | 36% |
| Spread -1.5 | 35% |
| Spread -1.5 | 32% |
| Spread -2.5 | 25% |
Market context
The Houston Astros face the Washington Nationals at Nationals Park in Washington, DC, with the game set to begin at 6:45pm ET on Monday, July 6. This matchup marks the quarter-point of the 2026 MLB season, where both teams have completed roughly 40 games. The crowd-implied probability sits at a precise 50% for an Astros victory, reflecting a market that views the contest as a coin flip despite the Astros' historical strength in the division.
Historically, MLB games between these franchises in early July have resolved with minimal variance, often hinging on single pitching performances rather than offensive dominance. Comparable cases from the 2024 and 2025 seasons show that when win probabilities hover near 50%, the outcome is frequently dictated by late-inning bullpen decisions or defensive errors, making the current pricing a rational assessment of the teams' balanced recent form.
Traders should monitor the starting lineups announced two hours before the game, as any rotation changes could shift the implied probability significantly. The primary catalyst is the performance of the Astros' ace, whose recent velocity metrics suggest a potential edge, while the Nationals rely on their young pitcher Paul Skenes, who has consistently showcased top form this season. For crypto-focused participants, the settlement in USDC on-chain will tie the contract's resolution to the final official statistics recognised by MLB, with no external macro BTC or ETH volatility influencing the outcome of this specific sports event.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $455K.
Methodology
This page reads Houston Astros vs. Washington Nationals on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
- Are crypto prediction markets taxable in the US?
- In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.
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