TOTAL VOLUME:

$134.2b

24H VOL:

$130,522,377

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,438,389,636

404,028

Markets across

30,214

events

MATCHED EVENTS:

2,681

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

BETA
Dashboards
Tour
All
Sports
ITF Harmon: Youssef Kadiri Hassani vs Hiromasa Koyama
polymarket

ITF Harmon: Youssef Kadiri Hassani vs Hiromasa Koyama

Volume:
$20,468

ITF Harmon: Youssef Kadiri Hassani vs Hiromasa Koyama

 - Polymarket

ITF Harmon: Youssef Kadiri Hassani vs Hiromasa Koyama - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jun 6, 2026

Closed: Jun 12, 9:00 PM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

ITF Harmon: Youssef Kadiri Hassani vs Hiromasa Koyama

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$20,468
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
Total markets: 2

Description

This market refers to the tennis match between Youssef Kadiri Hassani and Hiromasa Koyama in the ITF Men Harmon, originally scheduled for June 5, 2026 at 9:00PM ET. This market will resolve to 'Youssef Kadiri Hassani' if Youssef Kadiri Hassani advances against Hiromasa Koyama. This market will resolve to 'Hiromasa Koyama' if Hiromasa Koyama advances against Youssef Kadiri Hassani. 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.

Frequently asked questions

The ITF Harmon: Youssef Kadiri Hassani vs Hiromasa Koyama dashboard on Polymarket tracks real-time odds and pricing for this professional tennis match. You can monitor the current implied probability of each outcome, view historical price movements, and observe trading volume to gauge market conviction. The dashboard displays 24-hour volume data showing how actively traders are positioning ahead of the match. This single-venue view lets you see how the market is pricing Kadiri Hassani versus Koyama as new information emerges and match conditions develop.

Prediction market odds on Polymarket for this ITF Harmon match often differ from traditional sportsbook lines because they reflect real-time trader sentiment rather than fixed bookmaker pricing. Sportsbooks typically adjust odds more slowly and build in margin, while prediction markets update continuously as new bets flow in. For Kadiri Hassani versus Koyama, comparing Polymarket implied probabilities to major sportsbook spreads can reveal where the crowd on each venue disagrees about match outcome likelihood. These differences often reflect varying access to player form data, injury reports, and court conditions.

On Polymarket, the Kadiri Hassani versus Koyama match is priced through an automated market maker that converts trader bets into real-time implied probabilities for each outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Prices move as traders buy and sell shares, with each transaction shifting the odds to reflect new consensus. The current price reflects the marginal trader's view of match likelihood. Polymarket's transparent order flow and continuous pricing mean odds can shift rapidly based on breaking news about player fitness, surface conditions, or recent performance data relevant to this ITF Harmon event.

The ITF Harmon: Youssef Kadiri Hassani vs Hiromasa Koyama market resolves on Jun 13, 2026. Resolution is determined by the official result of the match as recorded by the ITF and confirmed by the host tournament. The outcome is binary: either Kadiri Hassani wins or Koyama wins. Once the match concludes and the official result is published, the market settles according to the winner. Traders holding shares in the winning outcome receive their payout, while losing positions expire worthless.

Several factors could shift odds for Kadiri Hassani versus Koyama before Jun 13, 2026. Recent tournament results or ranking changes for either player often trigger repricing. Injury announcements, withdrawal news, or fitness updates can dramatically alter market probability. Court surface conditions and weather forecasts closer to match day influence expectations. Head-to-head history or coaching changes may prompt trader repositioning. Player form in practice sessions or warm-up matches can move the needle. Large institutional bets or sudden volume spikes sometimes signal new information entering the market, causing rapid odds adjustments.