Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
BTC Prediction Pick polygram.ink |
20% | 80% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on BTC Prediction → |
Polymarket polymarket.com |
20% | 80% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on BTC Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on BTC Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on BTC Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on BTC Prediction → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on BTC Prediction.
Active sub-markets
| Baltimore Ravens | 20% YES | 80% NO |
| Carolina Panthers | 1% YES | 99% NO |
| Cincinnati Bengals | 0% YES | 100% NO |
| Dallas Cowboys | 0% YES | 100% NO |
| Los Angeles Chargers | 0% YES | 100% NO |
| Miami Dolphins | 0% YES | 100% NO |
Market context
Brandon Aiyuk, the San Francisco 49ers wide receiver, is widely expected to leave the franchise after six seasons, with the 20% crowd-implied probability reflecting uncertainty over whether he will officially join a new team by August 31, 2026. Historical precedents from recent NFL free agency show that high-profile receivers often face prolonged negotiations, with many landing spots remaining fluid until late summer. Comparable cases, such as the 2023 departures of top-tier wideouts, reveal that initial low probabilities can shift dramatically once teams signal serious interest, particularly when a player has strong ties to a specific organisation like the Washington Commanders, where Aiyuk is reportedly keen to reunite with former teammate Jayden Daniels[2].
Traders should monitor official trade announcements from the 49ers, as general manager John Lynch has explicitly stated the team is available and urged other clubs to "give us a call" regarding Aiyuk, though no update has emerged since the 2026 NFL Draft[3]. The Washington Commanders remain a favoured destination, yet their holding of hope is uncertain, while alternative landing spots like the New England Patriots, Pittsburgh Steelers, and Baltimore Ravens are also being evaluated for fit[7]. Key catalysts include any formal signing announcement prior to the market’s close, which would immediately resolve the outcome, alongside monitoring whale flows in crypto markets that might correlate with sudden shifts in betting volume on prediction platforms tied to USDC settlement and BTC/ETH macro trends.
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 — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.
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
- Where can I trade this market with the lowest fees?
- On BTC Prediction, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- BTC Prediction is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- What does it cost to trade on BTC Prediction?
- Zero. BTC Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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.
- 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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