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 |
|---|---|
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| O/U 3.5 | 100% |
| O/U 4.5 | 100% |
| O/U 5.5 | 100% |
| Both Teams to Score | 100% |
| 1st Half O/U 0.5 | 100% |
| 1st Half O/U 1.5 | 100% |
| SC Recife O/U 0.5 | 100% |
| SC Recife O/U 1.5 | 100% |
| SC Recife O/U 2.5 | 100% |
| Botafogo FC O/U 0.5 | 100% |
| Botafogo FC O/U 1.5 | 100% |
| Botafogo FC O/U 2.5 | 100% |
| Botafogo FC 1st Half O/U 0.5 | 100% |
| Botafogo FC 1st Half O/U 1.5 | 100% |
| Both Teams to Score in Second Half | 100% |
| 2nd Half O/U 0.5 | 100% |
| 2nd Half O/U 1.5 | 100% |
| 2nd Half O/U 2.5 | 100% |
| SC Recife 2nd Half O/U 0.5 | 100% |
| SC Recife 2nd Half O/U 1.5 | 100% |
| Botafogo FC 2nd Half O/U 0.5 | 100% |
| SC Recife (-1.5) | 0% |
| Botafogo FC (-1.5) | 0% |
| SC Recife (-2.5) | 0% |
| Botafogo FC (-2.5) | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 2.5 | 0% |
| SC Recife 1st Half O/U 0.5 | 0% |
| SC Recife 1st Half O/U 1.5 | 0% |
| Botafogo FC 2nd Half O/U 1.5 | 0% |
Market context
The Brazil Serie B fixture between Sport Recife and Botafogo-SP took place on 10 July 2026 at Estádio Adelmar da Costa Carvalho, with the contract settling on the outcome of additional markets beyond the standard match result. The crowd-implied probability of 0% YES suggests the market views the specific proposition as virtually impossible given the game’s actual flow and final scoreline, which aligns with historical patterns where Botafogo-SP often secures narrow victories or draws in tight away encounters against Sport Recife [1][5].
Historically, Sport Recife has struggled in recent Serie B form, failing to win their last five league matches, while Botafogo-SP has demonstrated resilience in away fixtures, including a 1-1 draw against Sport in June 2024 and a 1-0 win in a 2025 Brasileirão match [1][7]. These comparable cases indicate that high-scoring or volatile secondary outcomes are less likely when these teams meet, reinforcing the near-zero probability assigned to the YES position in this contract.
Traders should monitor on-chain settlement mechanics for USDC payouts and watch for whale flows on BTC and ETH that may correlate with liquidity shifts in prediction markets during the settlement window ending 23:00 UTC on 10 July. While no immediate news catalysts alter the settled result, funding rates on major crypto exchanges and spot price movements in the hours preceding settlement could influence capital allocation into similar sports contracts, as noted by crypto data trackers monitoring derivative activity [4][6].
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
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- 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.
- 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.
- 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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