NBA Summer League: Boston Celtics vs. Charlotte Hornets

Platform comparison

Market context

The Boston Celtics defeated the Charlotte Hornets 89–84 in their NBA Summer League clash on 12 July 2026, confirming the 100% YES price on Polymarket for the Celtics win. This outcome aligns with the contract’s settlement rules, where the market resolves to the winning team based on the final score including overtime, and the game was neither postponed nor cancelled.

Historically, Summer League contests between established franchises like the Celtics and developmental squads like the Hornets often see the former prevail, especially when key roster depth and coaching structure are in place. In recent years, Celtics Summer League teams have consistently posted winning records, while Hornets entries have shown volatility, making a 100% implied probability for Boston a statistically grounded reflection of on-court hierarchy rather than market overconfidence.

Traders should monitor official NBA Summer League announcements for any roster changes or scheduling dependencies that could affect future games, though this specific match has already concluded. The game aired live on ESPN2 and was streamed via DIRECTV, fubo, and the ESPN app, ensuring transparent result verification for on-chain settlement using USDC on Polygon via conditional tokens [9]. With the result confirmed at 89–84, the market’s 100% YES price now reflects a settled outcome rather than a forecast.

Sources: 1 · 2 · 3 · 4 · 5

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 PolyGram, 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

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.

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.

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.