Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Market context
The market bets on whether Bitcoin’s one-hour candle on Binance closes higher than it opens at 3AM ET on 13 July 2026. With the crowd assigning a 100% implied probability to “Up”, traders are effectively pricing in a near-certain upward tick for that specific window, a stance that diverges sharply from Polymarket’s similar hourly BTC markets, where implied probabilities hover around 50–51% for adjacent candles [2][3].
Historically, such extreme consensus on micro-timeframe crypto moves is rare; most hourly BTC candles resolve near random, with Polymarket’s 50% crowd-implied odds reflecting that noise [2]. Kalshi, Betfair and Smarkets typically express such views in decimal odds rather than implied probability, and they impose KYC barriers and fee structures that Polymarket’s permissionless, near-zero-fee model avoids. On this market, the divergence is stark: Polymarket’s 100% YES implies a pricing inefficiency or liquidity gap, whereas regulated books would likely cap odds well below 1.00 to reflect micro-volatility risk.
Traders should watch Binance’s BTC/USDT 1H candle data once finalized, as resolution hinges solely on the open and close displayed at the top of that graph [2]. While no immediate catalyst is tied to this exact hour, broader 2026 price forecasts suggest Bitcoin could trade between $68k and $105k by September, with Citi projecting a base-case $135k target by end-2025, hinting at sustained bullish momentum that may underpin such extreme short-term confidence [4][6].
Methodology
This page compares Bitcoin Up or Down - July 13, 3AM ET specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
FAQ
- Polymarket vs Kalshi — which is better?
- Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
Trade Bitcoin Up or Down - July 13, 3AM ET on Robinhood Prediction Markets
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