TOTAL VOLUME:
$61.9b
24H VOL:
$249,705,498
24H TRANSACTIONS:
600,069,390
OPEN INTEREST:
$1,354,509,605
579,516
Markets across
14,317
events
MATCHED EVENTS:
4,116
PLATFORM COVERAGE:
4
Polymarket:
50%
VS.
Kalshi:
50%
Outcome
Chance %
Price
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
Trade
Description
This event group covers prediction markets on who will win the 2026 ATP Monte Carlo Masters Men's Singles tournament, scheduled for April 4-12, 2026. Both Kalshi and Polymarket offer markets on individual player outcomes, with Polymarket providing a comprehensive set of named players plus catch-all categories, while Kalshi focuses on a curated list of 12 top contenders.
PredictionHero - Resolution Divergence Alerts (RDA)
Divergence Detected
Issue:
Kalshi lists 12 specific players with binary YES/NO resolution per player, while Polymarket uses a categorical format with 34 questions covering named players, placeholder players (A-E), and an 'someone else' catch-all. Kalshi's structure implies exactly one market resolves YES per winner; Polymarket's structure is logically contradictory—it cannot simultaneously resolve YES for both a named player and 'someone else', and the placeholder players (A-E) lack definition, making resolution impossible.Hero Tip:
Critical alert: Do not trade these markets without clarification. Kalshi's binary-per-player model is resolvable; Polymarket's categorical model with undefined placeholders and logical contradictions (named player + 'someone else' both YES) cannot be settled consistently. Seek official clarification on Polymarket's placeholder definitions and resolution hierarchy before placing bets.Critical Divergence Points:
Kalshi:
Distinct stance: Kalshi uses a binary YES/NO structure for each of 12 named players independently. Each market resolves YES if that specific player wins the 2026 ATP Monte-Carlo Masters, implying exactly one market per winner will resolve YES. Resolution source is the official tournament outcome. Quote: 'If [player name] wins the 2026 ATP Monte-Carlo Masters professional tennis tournament, then the market resolves to Yes.'Polymarket:
Distinct stance: Polymarket uses a categorical winner-prediction format with 34 separate YES/NO questions covering 24 named players, 5 undefined placeholder players (A-E), and a catch-all 'someone else' option. This creates logical impossibility: if a named player wins, both that player's market and 'someone else' cannot both resolve YES. Placeholder players lack any identifying information, making resolution undefined. Quote: 'This market will resolve to the player that wins the 2026 Monte Carlo Masters Men's Singles Tournament' combined with questions for 'Player A', 'Player B', 'Player C', 'Player D', 'Player E' with no definition provided.
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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