Tennis

Trade: Roland Garros Juniors, Girls: Ekaterina Dotsenko vs Mariella Thamm

Opened · Settles

Resolution criteria on PolyGram: This market refers to the tennis match between Ekaterina Dotsenko and Mariella Thamm in the Roland Garros Juniors, Girls, originally scheduled for June 3, 2026 at 6:30AM ET. This market will resolve to 'Ekaterina Dotsenko' if Ekaterina Dotsenko advances against Mariella Thamm. This market will resolve to 'Mariella Thamm' if Mariella Thamm advances against Ekaterina Dotsenko. 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.

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
$19
Total Volume
—
24h Volume
—
Open Interest
—
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Market outcomes

Roland Garros Juniors, Girls: Ekaterina Dotsenko vs Mariella Thamm 60% YES41% NO
Completed Match 50% YES50% NO

Market context

Ekaterina Dotsenko and Mariella Thamm are scheduled to meet in the girls' singles draw at Roland Garros on 3 June 2026. The current order book on Polymarket prices Dotsenko's advancement at 41 per cent, implying Thamm holds a 59 per cent edge. This probability reflects real-time trading activity and the collective assessment of both players' form, seeding position, and head-to-head record as of market open.

Junior Grand Slam draws are typically seeded by ranking, and recent ITF junior rankings provide the baseline for comparing these competitors. Dotsenko and Thamm's relative positions in the junior circuit, combined with their performance trajectories over the preceding months, inform the current split. Historical patterns at Roland Garros juniors show that seeded players advance at rates consistent with their ranking advantage, though upsets occur regularly in youth competition where form and mental resilience fluctuate sharply.

Traders should monitor official Roland Garros draw confirmations and any last-minute withdrawals or schedule adjustments, which occasionally occur in junior events due to illness or injury. The settlement window closes on 10 June at 10:30 UTC, allowing a one-week buffer beyond the scheduled match date. Any delay exceeding seven days without a completed result triggers a 50-50 resolution. Court assignments and weather conditions at Roland Garros in early June may also influence match dynamics, though these typically emerge only days before play.

Wikipedia Context

  • Stade Roland Garros
    Stade Roland Garros

    Stade Roland Garros is a complex of tennis courts, including stadiums, located in Paris that hosts the French Open. That tournament, also known as Roland Garros, is a major tennis championship played annually in late May and early June. The complex is named after Roland Garros (1888–1918), a pioneering French aviator, and was constructed in 1928 to host Fran

  • Roland Garros (aviator)
    Roland Garros (aviator)

    Eugène Adrien Roland Georges Garros was a French aviation pioneer and fighter pilot. A self-taught pilot, he performed many early aviation feats such as the first-ever airplane crossing of the Mediterranean Sea in 1913. He later joined the French Army and became one of the earliest fighter pilots during First World War.

  • Roland Garros Airport
    Roland Garros Airport

    Roland Garros Airport, formerly known as Gillot Airport, is an international airport located in Sainte-Marie on Réunion, France. The airport is 7 kilometres (3.8 NM) east of Saint-Denis; it is named after the French aviator Roland Garros, who was born in Saint-Denis.

  • French Open
    French Open

    Roland-Garros, also known as the French Open, is a tennis tournament organized by the French Tennis Federation annually at Stade Roland Garros in Paris, France. It is chronologically the second of the four Grand Slam tennis events every year, held after the Australian Open and before Wimbledon and the US Open. It was established in 1891 but it did not become

Resolution source

This market settles from the official outcome published at https://www.wtatennis.com/scores. 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 "Roland Garros Juniors, Girls: Ekaterina Dotsenko vs Mariella Thamm" 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.

  1. Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
  2. Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
  3. 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.
  4. 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.
  5. 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.
  6. 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?

$0 in lifetime turnover and $19 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.

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.

See the full prediction-market glossary →

Frequently asked questions

How does this market resolve?

Resolution is sourced from https://www.wtatennis.com/scores. 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 "Roland Garros Juniors, Girls: Ekaterina Dotsenko vs Mariella Thamm"?

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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