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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ITF Umag: Mak Mikovic vs Luca Castagnola
polymarket
kalshi

Who will win the ITF Umag match between Mikovic and Castagnola?

Volume:
$123,005

Luca Castagnola

 - Kalshi

Luca Castagnola - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 2, 2026

Closed: Jul 2, 7:36 AM 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

Luca Castagnola

View
100%
Yes 100¢No 0¢
100¢
N/A
$54,995
N/A
N/A
$34,707
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Total Sets: O/U 2.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$3
N/A
N/A
N/A
Settled
Yes
kalshi

Mak Mikovic

0%
Yes 0¢No 100¢
100¢
N/A
$65,159
N/A
N/A
$37,014
Settled
No
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola

0%
Yes 0¢No 100¢
—
N/A
$2,847
N/A
N/A
N/A
Settled
Yes
polymarket

Completed Match

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Set 2 Winner

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Set 1 Winner

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Set 1 O/U 8.5

100%
Yes 100¢No 0¢
0.9¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Set 1 O/U 9.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Match O/U 23.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Match O/U 21.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Match O/U 22.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Set 1 O/U 10.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Set Handicap +/-1.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Set 2 O/U 8.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Set 2 O/U 9.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Umag: Mak Mikovic vs Luca Castagnola Set 2 O/U 10.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 17

Description

This event group covers a professional tennis match between Mak Mikovic and Luca Castagnola scheduled for July 1, 2026 at 1:00 PM ET in the ITF Men's M15 Umag tournament. Markets span match completion, set winners, game totals, and set handicaps across Polymarket and Kalshi platforms.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Polymarket requires full match completion under normal play for Yes resolution; Kalshi requires only that a ball be played and a winner be determined, including via retirement or default. This creates different outcomes for incomplete-but-decisive matches.Hero tip: If the match begins but one player retires or defaults before all sets are completed, Polymarket completion markets resolve No while Kalshi winner markets resolve Yes. Cross-platform traders should hedge accordingly or clarify match status before settlement.

Critical divergence points:

  • Polymarket: Match completion and winner markets require full completion through normal play. Forfeit, retirement, walkover, cancellation, or 7+ day delay without completion all resolve to No or 50-50. Set-specific and game-total markets also resolve 50-50 if not completed. Primary source: Official ITF statistics or credible reporting consensus within 2 hours of conclusion.
  • Kalshi: Winner market resolves Yes if either player wins after a ball has been played, with no explicit exclusion for retirement, default, or incomplete matches. Simpler binary: ball played + winner determined = Yes. No mention of completion requirements or 7-day delays.
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.

Polymarket

This market refers to the tennis match between Mak Mikovic and Luca Castagnola in the ITF Men Umag, originally scheduled for July 1, 2026 at 1:00PM ET. This market will resolve to 'Mak Mikovic' if Mak Mikovic advances against Luca Castagnola. This market will resolve to 'Luca Castagnola' if Luca Castagnola advances against Mak Mikovic. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the International Tennis Federation (ITF). A consensus of credible reporting may also be used.

Kalshi

Resolution requires that a ball has been played in the match. If the match does not occur before play begins due to injury, walkover, forfeiture, or other cancellation, all markets resolve to $0.50. If a player withdraws or forfeits after the match has started, that player's market resolves to No. If the match is postponed or delayed, markets remain open and close following the rescheduled match completion within two weeks.

Frequently asked questions

Prediction markets like Polymarket and Kalshi operate on peer-to-peer trading rather than fixed odds set by a sportsbook. Traders buy and sell shares reflecting their belief in each outcome, and prices emerge from supply and demand. Unlike traditional sportsbooks, prediction markets often reflect sharper, less-constrained pricing because participants can trade freely without margin limits or house rules. This can make them more responsive to new information, though liquidity and market depth vary by event and platform.

Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Platform design, fee structures, and user bases shape price discovery differently. Polymarket uses an automated market maker model, while Kalshi operates an order-book system, each attracting traders with different risk tolerances and strategies. Regulatory constraints, minimum trade sizes, and promotional incentives also vary between venues. These structural differences mean the same match can trade at different implied probabilities across platforms, creating arbitrage opportunities for alert traders until prices converge.

Recent player form, head-to-head records, court surface performance, and injury reports are key catalysts. Tournament draws and seeding can shift expectations before play begins. During the match itself, live performance—break points, set outcomes, and momentum swings—will drive rapid repricing. News about player fitness, coaching changes, or external circumstances may also trigger volatility. Traders monitor these signals continuously, adjusting positions as new information arrives.