NBA Summer League: Toronto Raptors vs. Boston Celtics

Platform comparison

Market context

The Boston Celtics defeated the Toronto Raptors 83–80 in their NBA Summer League encounter on Friday, 10 July 2026, with the game concluding in Las Vegas before the settlement window closed. This outcome means the prediction market titled “NBA Summer League: Toronto Raptors vs. Boston Celtics” has already resolved to “Boston Celtics”, rendering the current 0% YES crowd-implied probability for a Raptors win factually consistent with the final score.

Historically, Summer League moneyline markets on Polymarket often show sharp divergence between pre-game implied odds and actual results due to the volatile nature of rookie and second-year lineups; in this case, the pre-game pricing favoured the Raptors at 54% implied probability, yet the Celtics secured a narrow three-point win [3][6]. Comparable cases from the 2024 and 2025 Summer Leagues show that teams priced as underdogs in pre-game markets frequently win by single digits, making post-game resolution straightforward once the final score is confirmed by official sources like ESPN [1][6].

For traders building programmatic strategies, the key catalyst was the official game summary released shortly after the 9:00 PM ET start time, which confirmed the 83–80 result and triggered automatic settlement [5]. Conditional order bots should monitor the NBA.com game summary endpoint for real-time score updates, as any postponement would keep the market open, but a cancellation without a make-up game would resolve it 50–50 per the market rules [1][5]. Since the game has already concluded, no further announcements or schedule dependencies affect this market’s resolution.

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 Polymarket Bot UK, 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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Bot UK 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.