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 |
|---|---|
| 1st 5 Innings Spread -1.5 | 100% |
| 1st 5 Innings O/U 2.5 | 100% |
| 1st 5 Innings O/U 3.5 | 100% |
| O/U 6.5 | 54% |
| Spread -1.5 | 53% |
| O/U 5.5 | 53% |
| O/U 7.5 | 51% |
| Spread -2.5 | 50% |
| Extra Innings | 49% |
| Spread -1.5 | 46% |
| O/U 8.5 | 34% |
| O/U 9.5 | 31% |
| Athletics vs. Detroit Tigers | 14% |
| NRFI | 0% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings Spread -2.5 | 0% |
| 1st 5 Innings Spread -2.5 | 0% |
| 1st 5 Innings O/U 4.5 | 0% |
| 1st 5 Innings O/U 5.5 | 0% |
| 1st 5 Innings O/U 6.5 | 0% |
Market context
The upcoming MLB matchup between the Athletics and Detroit Tigers at Comerica Park on Thursday, 9 July, with first pitch at 6:40 p.m. ET, presents a clear binary outcome for prediction markets: the Athletics win resolves YES, while a Tigers victory resolves NO. With the crowd-implied probability for an Athletics win sitting at just 14%, the market heavily favours Detroit, a stance reinforced by the Tigers’ 6-2 victory over the Athletics in their previous encounter on 7 July, where Tarik Skubal struck out nine and Colt Keith delivered a two-run homer[3].
Historically, such low probabilities for the visiting side in MLB games following a decisive home win often persist unless a significant shift in starting pitching or injury status occurs. In comparable 2025–2026 cases, teams losing by four runs in a prior game saw their win probability drop below 20% for the immediate rematch, unless a key starter was rested or replaced. The current 14% figure aligns with this pattern, suggesting the market views the Athletics’ recent performance as a structural weakness rather than a temporary slump.
Traders should monitor the probable starters and injury reports released ahead of the game, as any late changes to the Tigers’ rotation or Athletics’ bullpen could materially alter the outcome[2]. Additionally, watch for on-chain whale flows and USDC settlement volumes on crypto exchanges, which may signal shifting sentiment before the settlement window closes on 16 July 2026. While macro BTC/ETH volatility remains a background factor, the primary catalyst remains the official MLB starting lineups, with updates expected via MLB.TV and Detroit SportsNet[1].
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $778K.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
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
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- 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.
- 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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