The Prediction Markets

Chelsea vs Tottenham: First Half Winner

Starts in 15 hKickoff
Traded
$108K
Venues
Polymarket, Kalshi
Prices updated
1 min ago
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What the markets expect

Chelsea FC 52.5%

Next is Chelsea wins 1st Half at 42%. The venues list this event, but none of their outcomes are matched yet, so prices are shown separately.

Odds by venue

Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.

Prices come from our regular polls of each venue, the oldest 1 min ago. Ages are as of when this page was built.

  • Polymarket
  • Kalshi
Chelsea FC
52.5%
Polymarket 52.5%polled, 1 min agoBest Yes 53¢ on Polymarket, $100 pays $189 (1.89x)
Polymarket
Contract
Chelsea FC
Last price
52.5%
As of
Polled 1 min ago
Buy Yes
53¢
Sell Yes
52¢
$100 on Yes pays
$189 (1.89x)
Volume
$101K
Trade this on Polymarket
Chelsea wins 1st Half
42%
Kalshi 42%polled, 1 min agoBest Yes 42¢ on Kalshi, $100 pays $238 (2.38x)
Kalshi
Contract
Chelsea wins 1st Half
Last price
42%
As of
Polled 1 min ago
Buy Yes
42¢
Sell Yes
40¢
$100 on Yes pays
$238 (2.38x)
Volume
$672
Trade this on Kalshi
Tie 1st Half
36%
Kalshi 36%polled, 1 min agoBest Yes 38¢ on Kalshi, $100 pays $263 (2.63x)
Kalshi
Contract
Tie 1st Half
Last price
36%
As of
Polled 1 min ago
Buy Yes
38¢
Sell Yes
36¢
$100 on Yes pays
$263 (2.63x)
Volume
$150
Trade this on Kalshi
Draw (Chelsea FC vs. Tottenham Hotspur FC)
23.5%
Polymarket 23.5%polled, 1 min agoBest Yes 24¢ on Polymarket, $100 pays $417 (4.17x)
Polymarket
Contract
Draw (Chelsea FC vs. Tottenham Hotspur FC)
Last price
23.5%
As of
Polled 1 min ago
Buy Yes
24¢
Sell Yes
23¢
$100 on Yes pays
$417 (4.17x)
Volume
$651
Trade this on Polymarket
Tottenham Hotspur FC
23.5%
Polymarket 23.5%polled, 1 min agoBest Yes 24¢ on Polymarket, $100 pays $417 (4.17x)
Polymarket
Contract
Tottenham Hotspur FC
Last price
23.5%
As of
Polled 1 min ago
Buy Yes
24¢
Sell Yes
23¢
$100 on Yes pays
$417 (4.17x)
Volume
$6K
Trade this on Polymarket
Tottenham wins 1st Half
23%
Kalshi 23%polled, 1 min agoBest Yes 23¢ on Kalshi, $100 pays $435 (4.35x)
Kalshi
Contract
Tottenham wins 1st Half
Last price
23%
As of
Polled 1 min ago
Buy Yes
23¢
Sell Yes
21¢
$100 on Yes pays
$435 (4.35x)
Volume
$206
Trade this on Kalshi

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle, source: premierleague.com
Kalshi
Kalshi resolves via:
Kalshi (CFTC-regulated exchange), source: ESPN, Fox Sports

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • Chelsea FC
  • Chelsea wins 1st Half
  • Tie 1st Half

Order books

Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.

Polymarket

Open on Polymarket ↗

Top of book

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Best bid
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Spread
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Best ask
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Depth · top 8 levels

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Recent trades

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Kalshi

Kalshi doesn’t list Chelsea FC for this event.

What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

$
Buy

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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (sports rate). Fee calculator. Estimates only, not advice.

About this market

Live prediction market odds for "Chelsea vs Tottenham: First Half Winner". Chelsea FC leads at 52.5%. Next is Chelsea wins 1st Half at 42%. $108K has traded across 6 outcomes on Polymarket and Kalshi. The market is expected to resolve by Oct 26, 2026.

Questions

What does the consensus price mean?

It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.

How is the payout worked out?

A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.

Why do the venues show different prices?

Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.

Is a price gap an arbitrage?

Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.

How fresh are these prices?

Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.

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