Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 8 | 100% |
| ≤5 | 0% |
| 6 | 0% |
| 7 | 0% |
| 9 | 0% |
| 10 | 0% |
| 11 | 0% |
| 12+ | 0% |
Market context
Waymo’s ride-hailing service is publicly available in a growing number of distinct cities, with the company targeting expansion to over 20 locations by late 2026, including London and Tokyo. As of April 2026, the service operates commercially in 11 metropolitan regions, and recent rollouts have included Dallas, Houston, San Antonio, Orlando, Miami, Nashville, Atlanta, Austin, Los Angeles, Phoenix, and San Francisco. The settlement window for this prediction market closes on 30 June 2026, meaning any city where public booking is possible via the Waymo One or Uber apps before that date will count.
Historically, Waymo has moved from limited pilot phases to full public access within months in cities like Phoenix and San Francisco, suggesting a rapid scaling pattern. Comparable cases show that once manual driving operations begin in a new city—such as in Sacramento, Tampa, or Nashville—autonomous service typically follows within six to twelve months. This trajectory frames the current 0% implied probability on the “YES” side as potentially misaligned with analyst consensus, which anticipates at least 15 to 18 cities by mid-2026, a divergence from sportsbook lines that often underweight tech-sector expansion timelines.
Traders should monitor Waymo’s official announcements for public launch dates in Baltimore, Philadelphia, St. Louis, Pittsburgh, Detroit, Boston, Washington, D.C., and San Diego, all flagged as targets for 2026. A recent CNET report confirms that Vegas is expected in summer 2026, while London’s public launch is slated for late 2026, possibly just after the settlement window. Dependencies include validation of self-driving technology in new geographies and partnerships with Uber, Lyft, and Avis Budget Group for fleet management. Any delay in Sacramento or Tampa could impact the final count, but the overall momentum remains strong toward exceeding 15 cities by June 30.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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.
Trade How many cities will Waymo operate in by June 30? on Kalshi vs Polymarket
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