TOTAL VOLUME:

$92.8b

24H VOL:

$205,092,926

24H TRANSACTIONS:

886,030,093

OPEN INTEREST:

$2,033,292,662

780,780

Markets across

13,842

events

MATCHED EVENTS:

872

PLATFORM COVERAGE:

5

Polymarket:

46%

VS.

Kalshi:

54%

BETA
NBA: 2026-27 Rookie of the Year

NBA: 2026-27 Rookie of the Year? Odds & Prediction Markets

Total volume:
$781,611
Volume 24h:
$23,679
93%
Liquidity:
$218,841
4%
Open interest:
$94,492
26%
PredictionHero
Darryn Peterson 30%
kalshi
Darryn Peterson 22%
polymarket
AJ Dybantsa 24%
kalshi
Jun 25Jun 25Jun 26Jun 27Jun 28Jun 28Jun 29Jun 30Jul 1Jul 1Jul 2Jul 3Jul 3Jul 4Jul 5Jul 6Jul 6Jul 7Jul 8Jul 9Jul 9Jul 1020406080100
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Intro

This market tracks which player will win the NBA Rookie of the Year award for the 2026-27 season. Across Kalshi and Polymarket, the consensus probability for Darryn Peterson to claim the award stands at 35.0%, with Cameron Boozer at 22.5%. Resolution will be determined by official NBA sources, with credible reporting consensus serving as a supplement if official announcement is delayed. Watch for the award announcement expected by July 31, 2027, which marks the resolution deadline for this market.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

Both platforms resolve on the same underlying event—the official NBA Rookie of the Year award for 2026-27—with aligned tie-breaking logic and a shared resolution deadline of April 30, 2027 11:59 PM ET.Primary resolution logic: Official NBA sources; credible reporting consensus may supplement if official announcement is delayed

Core resolution logic:

  • Resolution occurs when the NBA officially announces the 2026-27 Rookie of the Year award winner
  • In case of a tie or co-winners, Polymarket resolves to the player whose last name comes first alphabetically; Kalshi explicitly includes a 'Tie/Co-Winners' outcome
  • If the 2026-27 NBA regular season is cancelled, postponed after April 30, 2027 11:59 PM ET, or no winner is declared by that deadline, Polymarket resolves to 'Other'
  • Individual player binary markets (YES/NO) resolve YES if that player wins the award, NO otherwise
  • The 'another player' or catch-all market resolves YES if any player not explicitly listed wins the award

Edge cases & clarifications:

  • Tie or Co-Winners: Polymarket applies alphabetical last-name ordering; Kalshi has an explicit 'Tie/Co-Winners' market outcome. Both treat this as a valid resolution scenario.
  • Season Cancellation or Postponement: If the 2026-27 regular season is cancelled or postponed beyond April 30, 2027 11:59 PM ET, Polymarket resolves to 'Other'. Kalshi does not explicitly address this scenario in the provided rules.
  • No Winner Declared: If no Rookie of the Year is declared within the resolution window, Polymarket resolves to 'Other'. Kalshi's fallback is not specified.
  • Player Not Listed: If a player not explicitly named in the market list wins the award, the 'another player' or catch-all market resolves YES; all individual player markets resolve NO.
Timing: Resolution occurs upon official NBA announcement of the 2026-27 Rookie of the Year award, with a hard deadline of April 30, 2027 11:59 PM ET. If no winner is declared by this date, Polymarket resolves to 'Other'.Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.
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Polymarket

This market will resolve to the player who wins the Rookie of the Year award for the 2026-27 NBA regular season. In the event of a tie, this market will resolve according to the official winner as determined by NBA rules. If multiple winners are announced then this market will resolve to the player whose listed last name comes first alphabetically. If the 2026-27 NBA regular season is cancelled, postponed after April 30, 2027, 11:59 PM ET, or there is otherwise no winner declared within that timeframe, this market will resolve to “Other”. The resolution source for this market will be official information from NBA; however, a consensus of credible reporting may also be used.

Kalshi

Each market resolves to Yes if the corresponding player or outcome wins the Pro Basketball Rookie of the Year award for the 2026-27 season. The award recognizes the most exceptional first-year professional basketball player based on regular season performance. Resolution is based on the official award announcement for that season. In the event that the award is shared between multiple players, the Tie/Co-Winners outcome resolves to Yes.

Frequently asked questions

This dashboard aggregates real-time odds across Polymarket and Kalshi for the 2026-27 NBA Rookie of the Year race, letting you monitor how traders and bettors are pricing each candidate's chances. Polymarket currently shows 23.0% for the leading contender, while Kalshi reflects a different consensus at 30.0%. By tracking both platforms simultaneously, you can spot pricing inefficiencies and understand which rookies the prediction market community favors as the season approaches. The combined volume across venues reveals market conviction and liquidity depth for this award.

Prediction markets like these operate on peer-to-peer trading rather than fixed sportsbook lines, meaning odds shift continuously based on trader activity and new information. Sportsbooks typically adjust lines to manage liability and profit margins, while prediction markets reflect aggregate belief—often with tighter spreads on consensus picks. This market's odds may lead or lag traditional sportsbooks depending on which venue processes roster news, injury reports, and preseason performance first. Traders who monitor both channels can identify arbitrage opportunities before consensus converges.

Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Each platform attracts different trader demographics, liquidity pools, and risk appetites, causing temporary price divergence. Polymarket may weight early draft capital and prospect pedigree more heavily, while Kalshi could emphasize team opportunity and playing time. Regulatory differences, fee structures, and user interface design also influence how quickly each venue incorporates the same news. These gaps typically narrow as the 2026-27 season draws closer and information becomes more concrete, but savvy traders exploit them in the interim.

This market resolves around Jul 31, 2027, once the NBA officially announces the 2026-27 Rookie of the Year award winner. The outcome is verified against credible public sources and the league's official decision. Until that date, odds will fluctuate based on rookie performance, injury status, team success, and media narrative. Early-season games and statistical trends typically drive the largest price movements in the months leading up to resolution.

Draft results and rookie summer league performances will be the first major catalysts, establishing baseline expectations for talent and fit. Once the regular season begins, early statistical output—scoring, assists, efficiency, and playing time—will reshape odds significantly. Injuries to frontrunners or breakout performances from overlooked prospects can trigger sharp repricing. Media narratives, All-Star voting, and end-of-season award voting patterns also influence trader sentiment. Team playoff success and individual playoff performance in spring 2027 may finalize the market's consensus before the official announcement.

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