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$1,441,166,947

406,422

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2,688

PLATFORM COVERAGE:

5

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Crystal Palace FC vs. West Ham United FC
polymarket
kalshi

Crystal Palace FC vs. West Ham United FC

Volume:
$4,327,103

Tie

all

2 markets

Kalshi

Polymarket

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Apr 21, 2026

Closed: Apr 20, 6:00 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Tie

View
100%
Yes 100¢No 0¢
—
N/A
$507,949
N/A
N/A
$297,255
Settled
Yes
polymarket

Draw (Crystal Palace FC vs. West Ham United FC)

View
100%
Yes 100¢No 0¢
—
N/A
$444,377
N/A
N/A
N/A
Settled
Yes
kalshi

Crystal Palace

View
0%
Yes 0¢No 100¢
—
N/A
$1,363,501
N/A
N/A
$897,795
Settled
No
polymarket

Crystal Palace FC

View
0%
Yes 0¢No 100¢
—
N/A
$971,945
N/A
N/A
N/A
Settled
No
kalshi

West Ham

View
0%
Yes 0¢No 100¢
—
N/A
$578,510
N/A
N/A
$382,959
Settled
No
polymarket

West Ham United FC

View
0%
Yes 0¢No 100¢
—
N/A
$460,820
N/A
N/A
N/A
Settled
No
Total markets: 6

Description

This event is for the upcoming Premier League game, scheduled for Monday, April 20, 2026 between Crystal Palace FC and West Ham United FC.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

Both Kalshi and Polymarket resolve based on the official match outcome within 90 minutes plus stoppage time on April 20, 2026, with identical scope and timing requirements.Primary resolution logic: Official Premier League statistics and governing body records, with fallback to credible reporting consensus if official statistics are not published within 2 hours of match conclusion.

Core resolution logic:

  • Market resolves based on the outcome of the Crystal Palace vs West Ham match after 90 minutes of regular play plus stoppage time, excluding extra time and penalties.
  • Three mutually exclusive outcomes are possible: Crystal Palace wins (YES on Polymarket CP market, YES on Kalshi), Draw (YES on Polymarket draw market, YES on Kalshi), or West Ham wins (YES on Polymarket WH market, YES on Kalshi).
  • Exactly one outcome will occur and resolve to YES across the respective markets.
  • If the match is postponed, markets remain open until completion.
  • If the match is canceled with no make-up game, Polymarket draw market resolves YES and win markets resolve NO; Kalshi market resolves YES (all outcomes covered).

Edge cases & clarifications:

  • Match Postponement: If the match is postponed, all markets remain open and unresolved until the rescheduled match is completed. Resolution occurs based on the final rescheduled match outcome.
  • Match Cancellation Without Makeup: On Polymarket, the draw market resolves YES and win markets resolve NO. On Kalshi, the market resolves YES (since all three outcomes are covered by a single YES resolution). This creates a technical asymmetry in cancellation scenarios but does not affect normal match resolution.
  • Resolution Source Hierarchy: Primary source is official Premier League statistics. If official statistics are not published within 2 hours of match conclusion, credible reporting consensus is used as fallback.
Timing: Resolution occurs upon official publication of final match statistics by the Premier League or governing body, or within 2 hours after match conclusion via credible reporting consensus if official statistics are delayed.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.