Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Sport Prediction Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Sport Prediction → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Sport Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Sport Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Sport Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Sport Prediction → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Sport Prediction.
Active sub-markets
| Boston Celtics | 0% YES | 100% NO |
| Brooklyn Nets | 1% YES | 99% NO |
| Indiana Pacers | 0% YES | 100% NO |
| LA Clippers | 0% YES | 100% NO |
| Orlando Magic | 0% YES | 100% NO |
| Philadelphia 76ers | 0% YES | 100% NO |
Market context
Austin Reaves has officially agreed to a four-year, $185 million contract to remain with the Los Angeles Lakers, ending any speculation about him joining a new team before October 2026[1][2]. This deal, the largest ever signed by an undrafted player in NBA history, was secured during the Lakers' exclusive negotiation window with their own roster, effectively removing Reaves from the free-agency market before it opened[1][2]. With Luka Dončić explicitly preferring Reaves as his backcourt partner and the Lakers prioritising this pairing, the probability of Reaves departing for another club is now negligible[1].
Historically, comparable cases of star players opting out of player options to test free agency have often resulted in them returning to their original franchises when the financial terms match or exceed market value, as seen with Reaves securing the maximum compensation available from any team[1][2]. The 0% crowd-implied probability aligns with this precedent, reflecting that Reaves has already settled his future and that no other team can realistically offer a superior package given the Lakers' ability to match the max deal[1][2]. Traders should note that Reaves' injury challenges in recent playoffs, including a toe strain and oblique issue, have not deterred the Lakers from committing long-term, further cementing his status as a core piece[1].
Key catalysts to watch include any official announcement of Reaves' contract signing, which would immediately resolve this market to "Lakers" and confirm the 0% probability for other teams[1]. The settlement window ending in October 2026 is irrelevant now, as Reaves' future is settled for at least two seasons alongside Dončić[1]. Traders should monitor the Lakers' cap flexibility for the 2027-28 season, where Reaves and Dončić will combine for approximately $98 million, but this does not alter Reaves' current commitment[4]. No further announcements regarding Reaves' departure are expected, as the agreement was finalised before the official start of free agency on June 30[1].
Methodology
We track NBA Free Agency: Austin Reaves Next Team on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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?
- Sport Prediction is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Sport Prediction triggers a quick verification flow that finishes in 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.
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