Trade: ITF Harmon: Matt Kleiman vs Ryo Minakata
Resolution criteria on PolyGram: This market refers to the tennis match between Matt Kleiman and Ryo Minakata in the ITF Men Harmon, originally scheduled for June 2, 2026 at 11:00PM ET. This market will resolve to 'Matt Kleiman' if Matt Kleiman advances against Ryo Minakata. This market will resolve to 'Ryo Minakata' if Ryo Minakata advances against Matt Kleiman. 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.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
- Liquidity
- $1K
- Total Volume
- $10
- 24h Volume
- $10
- Open Interest
- $10
Market outcomes
| ITF Harmon: Matt Kleiman vs Ryo Minakata | 39% YES | 61% NO |
| Completed Match | 50% YES | 50% NO |
Market context
Matt Kleiman and Ryo Minakata are scheduled to compete in the ITF Men's Harmon tournament on 2 June 2026 at 11:00 PM ET. The market currently reflects a 39% implied probability of Kleiman advancing, with the settlement window closing on 10 June 2026. This is a lower-tier professional tennis event where both players will be competing for ranking points and prize money on the ITF circuit.
Kleiman and Minakata operate at similar competitive levels within the ITF Men's circuit, where matches between players of comparable ranking often settle near 50-50 odds before additional information emerges. The current 39% probability for Kleiman suggests the Polymarket order book is pricing in either recent form advantages for Minakata, head-to-head history favouring the Japanese player, or surface-specific considerations. ITF Harmon events typically feature hard court play, which can significantly influence matchup dynamics. Traders should review recent ITF results for both players to assess whether the current probability reflects genuine performance divergence or market inefficiency.
Key catalysts include any withdrawal announcements in the days preceding the match, which would trigger the 50-50 tie-break resolution clause. Surface conditions, weather delays, and injury updates will be material. The seven-day grace period for delayed matches means traders should monitor tournament scheduling closely; if the match is postponed beyond 8 June without completion, the market resolves to 50-50 regardless of eventual outcome. Recent ITF circuit results and any ranking movements in late May 2026 will provide concrete data for position adjustment.
Wikipedia Context
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In Harmony (compilation albums)In Harmony: A Sesame Street Record and In Harmony 2 are two compilation albums of children's music performed by various artists, released in 1980 and 1981, respectively.
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Ill Harmonics
Ill Harmonics is a Christian hip hop band from Dallas, Texas, formed in 1995 by Playdough and Blake Knight. In 2004, Gib, the brother of Blake Knight, joined the group as a drummer. Ill Harmonics has released four studio albums, An Octave Above The Original Volume No. 1 (2000), Take Two (2002), Monkey Business (2004), and Modern Heart Exhibit (2007), as well
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In Harmony (music education project)
In Harmony is a British government-led social and music education programme based on El Sistema, adapted to an English context. In Harmony uses music to bring positive change to the lives of children in disadvantaged areas of England, delivering benefits across the wider community. The programme encourages participation in music – in the form of the symphony
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In Harmony (Roy Hargrove & Mulgrew Miller album)In Harmony is a live album by trumpeter Roy Hargrove and pianist Mulgrew Miller, recorded live on two dates—January 15, 2006, at Merkin Hall, and September 11, 2007, at Lafayette College's Williams Center for the Arts—it was released posthumously by Resonance Records on July 23, 2021. The album is the only of Hargrove's featuring no drummer.
Resolution source
This market settles from the official outcome published at https://www.itftennis.com/en/tournament-calendar/. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.
How to trade this market step by step
The mechanics for trading "ITF Harmon: Matt Kleiman vs Ryo Minakata" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.
- Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
- Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
- Pick a side. Buy YES if you believe the event will happen; buy NO if you think it won't. The current YES price reflects the market's collective probability.
- Size your position. If you stake 100 USDC at 50% YES, you'll receive shares that pay $200 if YES resolves true — a 100% gross return. If NO resolves, your shares are worth $0.
- Set risk controls (optional). Stop-loss, take-profit, and limit-order types all supported. Use the trade ticket's slippage box to cap your maximum entry price.
- Wait for resolution. When the event resolves on-chain via the UMA optimistic oracle, the winning side settles to 100¢ automatically and USDC hits your balance within seconds. Withdrawable to any wallet you control.
How active is this market?
$10 in lifetime turnover and $1K of resting liquidity puts this market in the below the median by volume for tennis contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.
Last 24 hours alone saw $10 in turnover, well above the lifetime daily-average for this market — a clear sign of news catalysing trader activity right now.
The market has been open for under a month — fresh enough that information asymmetry remains a real factor.
Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.
Key terms
- YES / NO share
- A binary outcome token that pays $1.00 if the underlying claim resolves true (YES) or false (NO), and $0 otherwise. The market price between 0¢ and 100¢ is the implied probability.
- CLOB
- Central limit order book. The matching engine that pairs YES buyers with NO buyers (effectively the same trade). Polymarket's CLOB on Polygon executes trades on-chain via the conditional-tokens framework.
- Liquidity
- USDC capital sitting in resting limit orders inside the order book. Deeper liquidity means smaller slippage on large trades and a tighter bid-ask spread.
- UMA optimistic oracle
- The on-chain dispute system that settles each Polymarket market. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution.
- Slippage
- The difference between the displayed mid-price and your fill price. Affects market orders most; limit orders avoid slippage but may take time to fill.
- Conditional token
- ERC-1155 outcome share issued by Gnosis Conditional Tokens on Polygon. The token type that resolves to $1.00 or $0.00 at settlement.
Frequently asked questions
How does this market resolve?
Resolution is sourced from https://www.itftennis.com/en/tournament-calendar/. Settlement is executed by the UMA optimistic oracle on Polygon, with a 2-hour dispute window before payouts clear.
When does this market close?
This prediction market is scheduled to close on 10 June 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
How can I trade on "ITF Harmon: Matt Kleiman vs Ryo Minakata"?
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
What happens when the market resolves?
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
Risk and regulatory note
Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.
Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.
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