The Prediction Markets

Matteo Berrettini vs Carlos Alcaraz: Total Games

Starts in 11 hKickoff
Traded
$77K
Venues
Polymarket, Kalshi
Prices updated
just now
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What the markets expect

Over 15.5 games 96%

Next is Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz at 62%. 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 4 min ago. Ages are as of when this page was built.

  • Polymarket
  • Kalshi
Over 15.5 games
96%
Kalshi 96%polled, 4 min agoBest Yes 96¢ on Kalshi, $100 pays $104 (1.04x)
Kalshi
Contract
Over 15.5 games
Last price
96%
As of
Polled 4 min ago
Buy Yes
96¢
Sell Yes
91¢
$100 on Yes pays
$104 (1.04x)
Volume
$2
Trade this on Kalshi
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
62%
Polymarket 62%polled, 20s agoBest Yes 63¢ on Polymarket, $100 pays $159 (1.59x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Set Handicap +/-1.5
Last price
62%
As of
Polled just now
Buy Yes
63¢
Sell Yes
61¢
$100 on Yes pays
$159 (1.59x)
Volume
$32
Trade this on Polymarket
Over 20.5 games
58%
Kalshi 58%polled, 4 min agoBest Yes 58¢ on Kalshi, $100 pays $172 (1.72x)
Kalshi
Contract
Over 20.5 games
Last price
58%
As of
Polled 4 min ago
Buy Yes
58¢
Sell Yes
57¢
$100 on Yes pays
$172 (1.72x)
Volume
$1K
Trade this on Kalshi
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
50%
Polymarket 50%polled, 20s agoBest Yes 98¢ on Polymarket, $100 pays $102 (1.02x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Set 2 Winner
Last price
50%
As of
Polled just now
Buy Yes
98¢
Sell Yes
2¢
$100 on Yes pays
$102 (1.02x)
Trade this on Polymarket
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
50%
Polymarket 50%polled, 20s agoBest Yes 51¢ on Polymarket, $100 pays $196 (1.96x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Match O/U 21.5
Last price
50%
As of
Polled just now
Buy Yes
51¢
Sell Yes
49¢
$100 on Yes pays
$196 (1.96x)
Volume
$7K
Trade this on Polymarket
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
49%
Polymarket 49%polled, 20s agoBest Yes 98¢ on Polymarket, $100 pays $102 (1.02x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Set 2 O/U 8.5
Last price
49%
As of
Polled just now
Buy Yes
98¢
Sell Yes
—
$100 on Yes pays
$102 (1.02x)
Trade this on Polymarket
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
49%
Polymarket 49%polled, 20s agoBest Yes 98¢ on Polymarket, $100 pays $102 (1.02x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Set 1 O/U 9.5
Last price
49%
As of
Polled just now
Buy Yes
98¢
Sell Yes
—
$100 on Yes pays
$102 (1.02x)
Trade this on Polymarket
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
49%
Polymarket 49%polled, 20s agoBest Yes 98¢ on Polymarket, $100 pays $102 (1.02x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Set 2 O/U 9.5
Last price
49%
As of
Polled just now
Buy Yes
98¢
Sell Yes
—
$100 on Yes pays
$102 (1.02x)
Trade this on Polymarket
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
49%
Polymarket 49%polled, 20s agoBest Yes 98¢ on Polymarket, $100 pays $102 (1.02x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Set 2 O/U 10.5
Last price
49%
As of
Polled just now
Buy Yes
98¢
Sell Yes
—
$100 on Yes pays
$102 (1.02x)
Trade this on Polymarket
Completed Match
48%
Polymarket 48%polled, 20s agoBest Yes 96¢ on Polymarket, $100 pays $104 (1.04x)
Polymarket
Contract
Completed Match
Last price
48%
As of
Polled just now
Buy Yes
96¢
Sell Yes
—
$100 on Yes pays
$104 (1.04x)
Trade this on Polymarket
Show 9 more outcomes
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
48%
Polymarket 48%polled, 20s agoBest Yes 49¢ on Polymarket, $100 pays $204 (2.04x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Game Spread +/-4.5
Last price
48%
As of
Polled just now
Buy Yes
49¢
Sell Yes
47¢
$100 on Yes pays
$204 (2.04x)
Volume
$10
Trade this on Polymarket
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
41.5%
Polymarket 41.5%polled, 20s agoBest Yes 42¢ on Polymarket, $100 pays $238 (2.38x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Match O/U 22.5
Last price
41.5%
As of
Polled just now
Buy Yes
42¢
Sell Yes
41¢
$100 on Yes pays
$238 (2.38x)
Trade this on Polymarket
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
41%
Polymarket 41%polled, 20s agoBest Yes 82¢ on Polymarket, $100 pays $122 (1.22x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Set 1 O/U 8.5
Last price
41%
As of
Polled just now
Buy Yes
82¢
Sell Yes
—
$100 on Yes pays
$122 (1.22x)
Trade this on Polymarket
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
30.5%
Polymarket 30.5%polled, 20s agoBest Yes 32¢ on Polymarket, $100 pays $313 (3.13x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Set 1 O/U 10.5
Last price
30.5%
As of
Polled just now
Buy Yes
32¢
Sell Yes
29¢
$100 on Yes pays
$313 (3.13x)
Trade this on Polymarket
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
29.5%
Polymarket 29.5%polled, 20s agoBest Yes 31¢ on Polymarket, $100 pays $323 (3.23x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Total Sets: O/U 2.5
Last price
29.5%
As of
Polled just now
Buy Yes
31¢
Sell Yes
28¢
$100 on Yes pays
$323 (3.23x)
Volume
$16
Trade this on Polymarket
Over 25.5 games
29%
Kalshi 29%polled, 4 min agoBest Yes 29¢ on Kalshi, $100 pays $345 (3.45x)
Kalshi
Contract
Over 25.5 games
Last price
29%
As of
Polled 4 min ago
Buy Yes
29¢
Sell Yes
28¢
$100 on Yes pays
$345 (3.45x)
Volume
$25
Trade this on Kalshi
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
27%
Polymarket 27%polled, 20s agoBest Yes 46¢ on Polymarket, $100 pays $217 (2.17x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Match O/U 23.5
Last price
27%
As of
Polled just now
Buy Yes
46¢
Sell Yes
8¢
$100 on Yes pays
$217 (2.17x)
Trade this on Polymarket
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
22.5%
Polymarket 22.5%polled, 20s agoBest Yes 24¢ on Polymarket, $100 pays $417 (4.17x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz Set 1 Winner
Last price
22.5%
As of
Polled just now
Buy Yes
24¢
Sell Yes
21¢
$100 on Yes pays
$417 (4.17x)
Trade this on Polymarket
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
20.5%
Polymarket 20.5%polled, 20s agoBest Yes 21¢ on Polymarket, $100 pays $476 (4.76x)
Polymarket
Contract
Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
Last price
20.5%
As of
Polled just now
Buy Yes
21¢
Sell Yes
20¢
$100 on Yes pays
$476 (4.76x)
Volume
$68K
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle, source: atptour.com
Kalshi
Kalshi resolves via:
Kalshi (CFTC-regulated exchange), source: ATP

How the odds have moved

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

  • Over 15.5 games
  • Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz
  • Over 20.5 games

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

Polymarket doesn’t list Over 15.5 games for this event.

Kalshi

Open on Kalshi ↗

Top of book

Connecting
Best bid
—
Spread
—
Best ask
—

Waiting for the first live quote…

Depth · top 8 levels

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Recent trades

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What your stake buys

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

$
Buy

Loading both order books…

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 "Matteo Berrettini vs Carlos Alcaraz: Total Games". Over 15.5 games leads at 96%. Next is Rolex Paris Masters: Matteo Berrettini vs Carlos Alcaraz at 62%. $77K has traded across 19 outcomes on Polymarket and Kalshi. The market is expected to resolve by Nov 19, 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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