TOTAL VOLUME:

$134.2b

24H VOL:

$134,145,987

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,441,166,947

406,422

Markets across

30,383

events

MATCHED EVENTS:

2,688

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Crystal Palace FC vs. West Ham United FC - Halftime Result
polymarket
kalshi

Crystal Palace FC vs. West Ham United FC - Halftime Result

Volume:
$29,809

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
$8,608
N/A
N/A
$7,069
Settled
Yes
polymarket

Draw

View
100%
Yes 100¢No 0¢
—
N/A
$737
N/A
N/A
N/A
Settled
Yes
kalshi

Crystal Palace

View
0%
Yes 0¢No 100¢
—
N/A
$8,938
N/A
N/A
$7,620
Settled
No
polymarket

Crystal Palace FC

View
0%
Yes 0¢No 100¢
—
N/A
$1,807
N/A
N/A
N/A
Settled
No
kalshi

West Ham

View
0%
Yes 0¢No 100¢
—
N/A
$5,949
N/A
N/A
$5,435
Settled
No
polymarket

West Ham United FC

View
0%
Yes 0¢No 100¢
—
N/A
$3,770
N/A
N/A
N/A
Settled
No
Total markets: 6

Description

This market group tracks the halftime result of the Crystal Palace vs. West Ham United EPL match scheduled for April 20, 2026. The market resolves based on which team is ahead (or if tied) after 45 minutes plus stoppage time of the first half.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi market resolves YES for ALL possible halftime outcomes (West Ham win, Crystal Palace win, or draw), making it logically incoherent and fundamentally unresolvable. Polymarket markets are mutually exclusive binary outcomes tied to specific team results.Hero tip: Avoid the Kalshi market entirely—it violates basic market logic by guaranteeing a YES resolution regardless of match outcome. Trade only the three Polymarket binary markets, which are properly structured as mutually exclusive outcomes.

Critical divergence points:

  • Kalshi: All three resolution conditions resolve to YES: 'If West Ham is the winner...then YES', 'If Crystal Palace is the winner...then YES', 'If Tie is the result...then YES'. This creates a logical contradiction where the market always resolves YES, making it impossible to lose or differentiate outcomes.
  • Polymarket: Three separate binary markets with mutually exclusive outcomes: West Ham leading at halftime (YES/NO), Crystal Palace leading at halftime (YES/NO), and Draw at halftime (YES/NO). Each market resolves YES only if its specific condition occurs, otherwise NO. Resolution source is official governing body statistics or credible consensus within 24 hours.
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.