Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Fees) Pick polygram.ink (preferred broker) |
71% | 29% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
71% | 29% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Set 1 O/U 8.5 | 71% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala | 59% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Set 2 Winner | 57% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Set 1 Winner | 56% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Match O/U 21.5 | 51% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Set 2 O/U 8.5 | 51% |
| Completed Match | 50% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Set 2 O/U 9.5 | 50% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Set 1 O/U 9.5 | 48% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Match O/U 22.5 | 45% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Match O/U 23.5 | 43% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Total Sets: O/U 2.5 | 39% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Set Handicap +/-1.5 | 39% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Set 1 O/U 10.5 | 25% |
| Mubadala Citi DC Open: Naomi Osaka vs Alexandra Eala Set 2 O/U 10.5 | 22% |
Market context
Based on real-money crowd forecasting, mubadala citi dc open: naomi osaka vs alexandra eala stands at 71% likelihood according to current market consensus. This market refers to the tennis match between Naomi Osaka and Alexandra Eala in the Mubadala Citi DC Open, originally scheduled for August 1, 2026 at 3:30PM ET. This market will …
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi Fees, which mirrors the Polymarket order book directly.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- 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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