Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
10% | 90% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
10% | 90% | 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 |
|---|---|
| Londrina EC 2nd Half O/U 1.5 | 10% |
| Botafogo FC 2nd Half O/U 0.5 | 10% |
| Botafogo FC 2nd Half O/U 1.5 | 10% |
| 2nd Half O/U 0.5 | 5% |
| Londrina EC 2nd Half O/U 0.5 | 4% |
| Londrina EC 1st Half O/U 0.5 | 1% |
| Botafogo FC 1st Half O/U 1.5 | 1% |
| Londrina EC (-1.5) | 0% |
| Botafogo FC (-1.5) | 0% |
| Londrina EC (-2.5) | 0% |
| Botafogo FC (-2.5) | 0% |
| O/U 0.5 | 0% |
| O/U 1.5 | 0% |
| O/U 2.5 | 0% |
| O/U 3.5 | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score | 0% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 0.5 | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| Londrina EC O/U 0.5 | 0% |
| Londrina EC O/U 1.5 | 0% |
| Londrina EC O/U 2.5 | 0% |
| Botafogo FC O/U 0.5 | 0% |
| Botafogo FC O/U 1.5 | 0% |
| Botafogo FC O/U 2.5 | 0% |
| Londrina EC 1st Half O/U 1.5 | 0% |
| Botafogo FC 1st Half O/U 0.5 | 0% |
| Both Teams to Score in Second Half | 0% |
| 2nd Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
Market context
Londrina Esporte Clube will host Botafogo de Futebol e Regatas in Brazil's Serie B on 20 July at 7:00 PM ET. This fixture sits mid-table in the 2026 campaign, with Londrina operating from their Estádio do Café ground in Paraná state. Botafogo, historically a Rio de Janeiro powerhouse now competing in the second tier, brings greater financial resources and squad depth. The 0% implied probability on additional markets suggests either minimal liquidity in this particular contract cluster or that traders are concentrating positions in primary match outcome derivatives rather than fragmenting across secondary betting angles.
Historical context from comparable Brazilian Serie B fixtures shows that secondary market contracts—particularly those settling on USDC within 48 hours of match conclusion—typically attract sparse volume until 72 hours before kickoff. When on-chain settlement windows close post-match, funding rates on related perpetual contracts often spike as traders hedge live-game exposure. Botafogo's recent promotion trajectory and investment backing have made their fixtures more liquid across crypto markets than mid-tier opponents; Londrina's narrower supporter base translates to thinner order books on decentralised exchanges.
Traders should monitor team news releases and injury bulletins through 19 July, particularly regarding Botafogo's squad availability. Brazilian Serie B fixtures occasionally shift scheduling due to fixture congestion; confirmation of the 7:00 PM ET start time should be verified against CBF (Confederação Brasileira de Futebol) official calendars. USDC liquidity pairs on Uniswap and Curve will determine settlement execution costs; spot prices typically tighten 12 hours before resolution.
Methodology
This page reads Londrina EC vs. Botafogo FC - More Markets 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
- 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.
- 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.
- 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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