Market statistics
- Total volume
- $420K
- 24h volume
- $420K
- Open interest
- $339K
Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Available prediction outcomes (10)
Sorted by descending live probability. Click any outcome to trade it on PolyGram.
Market context
This market refers to the tennis match between James Watt and Harry Wendelken in the Birmingham, originally scheduled for June 2, 2026 at 7:00AM ET. This market will resolve to 'James Watt' if James Watt advances against Harry Wendelken. This market will resolve to 'Harry Wendelken' if Harry Wendelken advances against James Watt. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolv
Wikipedia Context
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Birmingham AmericansThe Birmingham Americans were a professional American football team located in Birmingham, Alabama. They were members of the four-team Central Division of the World Football League (WFL). The Americans, founded in late December 1973, played in the upstart league's inaugural season in 1974. The team was owned by William "Bill" Putnam, doing business as Alabam
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Birmingham TimesThe Birmingham Times is a weekly African-American newspaper published in Birmingham, Alabama.
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Christadelphians
The Christadelphians are a restorationist and Unitarian Christian denomination. The name means 'brothers in Christ', from the Greek words for Christ (Christos) and brothers (adelphoi).
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James Bermingham (Irish Republican Brotherhood)James Bermingham (1849–1907) was a prominent "advanced nationalist" in Dublin during the last quarter of the nineteenth and early part of the twentieth centuries.
Methodology
This page reviews Birmingham: James Watt vs Harry Wendelken across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Resolution source: This market settles from the official publication at https://www.atptour.com/en/scores/current. A proposer submits the result to the UMA Optimistic Oracle on Polygon, the two-hour challenge window opens, and the smart contract pays out in USDC.
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
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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 PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Birmingham: James Watt vs Harry Wendelken on PolyGram
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