Market snapshot: Nov 11, 2026, 3:00 PM UTC. Prices may have changed since this snapshot.

GroupPOLYMARKET

Event GroupPOLYMARKETSports

Sopo: Laura Samson vs Sofia Costoulas

Reported volume

PM $161.05

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Sopo: Laura Samson vs Sofia Costoulas

Vol

PM $161.05

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Sopo: Laura Samson vs Sofia Costoulas

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Single-Platform Markets(9)

Market	Platform	Price
Sopo: Laura Samson vs Sofia Costoulas	Kalshi	Unavailable
Set 1 Winner: Laura Samson vs Sofia Costoulas	Kalshi	Unavailable
Set 2 Winner: Laura Samson vs Sofia Costoulas	Kalshi	Unavailable
Laura Samson vs. Sofia Costoulas: Total Sets Over/Under 2.5	Kalshi	Unavailable
Samson vs. Costoulas: Match Over/Under 21.5	Kalshi	Unavailable
Samson vs. Costoulas: Match Over/Under 22.5	Kalshi	Unavailable
Samson vs. Costoulas: Match Over/Under 23.5	Kalshi	Unavailable
Set Handicap: Laura Samson (-1.5) vs Sofia Costoulas (+1.5)	Kalshi	Unavailable
Set Handicap: Sofia Costoulas (-1.5) vs Laura Samson (+1.5)	Kalshi	Unavailable

Rules & Resolution

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PM $161.05

Reported volume · provider units

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Source snapshot: Nov 11, 2026, 3:00 PM UTC

About This Event

This market refers to the tennis match between Laura Samson and Sofia Costoulas in the Sopo, originally scheduled for November 11, 2026 at 11:30AM ET. This market will resolve to 'Laura Samson' if Laura Samson advances against Sofia Costoulas. This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Laura Samson. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 25, 2026, 11:59 PM ET (14 days after the scheduled start), 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 WTA Tour. A consensus of credible reporting may also be used.

AI-generated analysis based on market data. Not financial advice.

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Event: Sopo: Laura Samson vs Sofia Costoulas
Source snapshot: Nov 11, 2026, 3:00 PM UTC
Reported event volume (provider units): PM $161.05
Coverage: 9 of 9 saved contracts included.
Prices are saved observations, not executable quotes. Listed close dates do not promise settlement or payout time.

Contract: Sopo: Laura Samson vs Sofia Costoulas
Provider: polymarket; ID: polymarket-6947111; status: active
Source: https://polymarket.com/event/wta-samson-costoul-2026-11-11
Observed: Nov 11, 2026, 3:00 PM UTC
Listed close: Nov 18, 2026, 4:30 PM UTC
Reported volume: $156.05
Outcome Laura Samson: 71.5%; 24h change unavailable
Outcome Sofia Costoulas: 28.5%; 24h change unavailable
Saved rules: This market refers to the tennis match between Laura Samson and Sofia Costoulas in the Sopo, originally scheduled for November 11, 2026 at 11:30AM ET.

This market will resolve to 'Laura Samson' if Laura Samson advances against Sofia Costoulas.

This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Laura Samson.

If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 25, 2026, 11:59 PM ET (14 days after the scheduled start), 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 WTA Tour. A consensus of credible reporting may also be used.

Contract: Set 1 Winner: Laura Samson vs Sofia Costoulas
Provider: polymarket; ID: polymarket-6947518; status: active
Source: https://polymarket.com/event/wta-samson-costoul-2026-11-11-first-set-winner-Samson-vs-Costoulas
Observed: Nov 11, 2026, 3:00 PM UTC
Listed close: Nov 18, 2026, 4:30 PM UTC
Reported volume: $0
Outcome Laura Samson: 66.5%; 24h change unavailable
Outcome Sofia Costoulas: 33.5%; 24h change unavailable
Saved rules: This market refers to the tennis match between Laura Samson and Sofia Costoulas in the Sopo, originally scheduled for November 11, 2026 at 11:30AM ET.
This market will resolve to “Laura Samson” if Laura Samson wins the first set. It will resolve to “Sofia Costoulas” if Sofia Costoulas wins the first set.
If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50.
If the match is canceled (not played at all) or play has not begun by November 25, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.
Resolution will be based on official WTA Challenger match statistics.

This market may resolve only when the listed period of play has concluded and the result can be definitively determined by the listed resolution source(s).

Contract: Set 2 Winner: Laura Samson vs Sofia Costoulas
Provider: polymarket; ID: polymarket-6947521; status: active
Source: https://polymarket.com/event/wta-samson-costoul-2026-11-11-set-2-winner-Samson-vs-Costoulas
Observed: Nov 11, 2026, 3:00 PM UTC
Listed close: Nov 18, 2026, 4:30 PM UTC
Reported volume: $0
Outcome Laura Samson: 50.0%; 24h change unavailable
Outcome Sofia Costoulas: 50.0%; 24h change unavailable
Saved rules: This market refers to the tennis match between Laura Samson and Sofia Costoulas in the Sopo, originally scheduled for November 11, 2026 at 11:30AM ET.
This market will resolve to “Laura Samson” if Laura Samson wins set 2. It will resolve to “Sofia Costoulas” if Sofia Costoulas wins set 2.
If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50.
If the match is canceled (not played at all) or play has not begun by November 25, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.
Resolution will be based on official WTA Challenger match statistics.

This market may resolve only when the listed period of play has concluded and the result can be definitively determined by the listed resolution source(s).

Contract: Laura Samson vs. Sofia Costoulas: Total Sets Over/Under 2.5
Provider: polymarket; ID: polymarket-6947526; status: active
Source: https://polymarket.com/event/wta-samson-costoul-2026-11-11-set-totals-2pt5
Observed: Nov 11, 2026, 3:00 PM UTC
Listed close: Nov 18, 2026, 4:30 PM UTC
Reported volume: $0
Outcome Over 2.5: 35.0%; 24h change unavailable
Outcome Under 2.5: 65.0%; 24h change unavailable
Saved rules excerpt (truncated): This market refers to the tennis match between Laura Samson and Sofia Costoulas in the Sopo, originally scheduled for November 11, 2026 at 11:30AM ET.
If the match is played to completion, this market will resolve to "Over" if the total number of sets played equals or exceeds 3, and to "Under" otherwise. A set counts as played once it has begun, even if it is not played to completion. A super tie breaker is considered as one (1) set.
If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution.
If a player retires, withdraws, is defaulted, or is disqualified, or the match otherwise begins but is not completed, this market will resolve based on any outcome that was already unequivocally determined at the time play stopped. An outcome is considered unequivocally determined if it would have been guaranteed under every possible completion of the match played according to the match format published by the tournament organizer for that round. For example, for a line of 2.5, if play stops with the players at one set each, completing the match would have required at least one additional set

Contract: Samson vs. Costoulas: Match Over/Under 21.5
Provider: polymarket; ID: polymarket-6947531; status: active
Source: https://polymarket.com/event/wta-samson-costoul-2026-11-11-match-total-21pt5
Observed: Nov 11, 2026, 3:00 PM UTC
Listed close: Nov 18, 2026, 4:30 PM UTC
Reported volume: $0
Outcome Over: 44.5%; 24h change unavailable
Outcome Under: 55.5%; 24h change unavailable
Saved rules excerpt (truncated): This market refers to the tennis match between Laura Samson and Sofia Costoulas in the Sopo, originally scheduled for November 11, 2026 at 11:30AM ET.
This market will resolve to "Over" if the total number of games completed equals or exceeds 22. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game.
If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution.
If the match is permanently abandoned before completion, or if the match has not been completed by November 25, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the match played according to the match format published by the tournament organizer for that round, including whether a final set is played as a full set or as a match tiebreak. For example, for a line of 21.5, if play stops at 6-3, 5-6, completing the match would have required at least 2 additional 

Contract: Samson vs. Costoulas: Match Over/Under 22.5
Provider: polymarket; ID: polymarket-6947536; status: active
Source: https://polymarket.com/event/wta-samson-costoul-2026-11-11-match-total-22pt5
Observed: Nov 11, 2026, 3:00 PM UTC
Listed close: Nov 18, 2026, 4:30 PM UTC
Reported volume: $0
Outcome Over: 46.0%; 24h change unavailable
Outcome Under: 54.0%; 24h change unavailable
Saved rules excerpt (truncated): This market refers to the tennis match between Laura Samson and Sofia Costoulas in the Sopo, originally scheduled for November 11, 2026 at 11:30AM ET.
This market will resolve to "Over" if the total number of games completed equals or exceeds 23. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game.
If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution.
If the match is permanently abandoned before completion, or if the match has not been completed by November 25, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the match played according to the match format published by the tournament organizer for that round, including whether a final set is played as a full set or as a match tiebreak. For example, for a line of 21.5, if play stops at 6-3, 5-6, completing the match would have required at least 2 additional 

Contract: Samson vs. Costoulas: Match Over/Under 23.5
Provider: polymarket; ID: polymarket-6947542; status: active
Source: https://polymarket.com/event/wta-samson-costoul-2026-11-11-match-total-23pt5
Observed: Nov 11, 2026, 3:00 PM UTC
Listed close: Nov 18, 2026, 4:30 PM UTC
Reported volume: $0
Outcome Over: 46.0%; 24h change unavailable
Outcome Under: 54.0%; 24h change unavailable
Saved rules excerpt (truncated): This market refers to the tennis match between Laura Samson and Sofia Costoulas in the Sopo, originally scheduled for November 11, 2026 at 11:30AM ET.
This market will resolve to "Over" if the total number of games completed equals or exceeds 24. Otherwise, it will resolve to "Under." All tiebreaks, including any Champions/Super tiebreak, count as one (1) game.
If the match is postponed or suspended, this market will remain open until the match has been completed. A postponement alone will not trigger a 50-50 resolution.
If the match is permanently abandoned before completion, or if the match has not been completed by November 25, 2026, 11:59 PM ET, this market will resolve 50-50, unless the outcome has already been unconditionally determined based on completed play. An outcome is considered unconditionally determined if it would have been guaranteed under every possible completion of the match played according to the match format published by the tournament organizer for that round, including whether a final set is played as a full set or as a match tiebreak. For example, for a line of 21.5, if play stops at 6-3, 5-6, completing the match would have required at least 2 additional 

Contract: Set Handicap: Laura Samson (-1.5) vs Sofia Costoulas (+1.5)
Provider: polymarket; ID: polymarket-6947548; status: active
Source: https://polymarket.com/event/wta-samson-costoul-2026-11-11-set-handicap-home-1pt5
Observed: Nov 11, 2026, 3:00 PM UTC
Listed close: Nov 18, 2026, 4:30 PM UTC
Reported volume: $5
Outcome Laura Samson: 49.0%; 24h change unavailable
Outcome Sofia Costoulas: 51.0%; 24h change unavailable
Saved rules: This market refers to the tennis match between Laura Samson and Sofia Costoulas in the Sopo, originally scheduled for November 11, 2026 at 11:30AM ET.
This market will resolve to "Laura Samson" if Laura Samson wins by 2 or more sets than Sofia Costoulas, based on the final completed score. Otherwise, it will resolve to "Sofia Costoulas."
If the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play under the match format published by the tournament organizer for that round. For example, if the deciding set has begun when the match ends, Laura Samson can no longer win by 2 or more sets, and this market will resolve to "Sofia Costoulas."
If the match is canceled before play begins, or a result has not been determined by November 25, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.
Resolution will be based on official WTA Challenger results.

Contract: Set Handicap: Sofia Costoulas (-1.5) vs Laura Samson (+1.5)
Provider: polymarket; ID: polymarket-6947554; status: active
Source: https://polymarket.com/event/wta-samson-costoul-2026-11-11-set-handicap-away-1pt5
Observed: Nov 11, 2026, 3:00 PM UTC
Listed close: Nov 18, 2026, 4:30 PM UTC
Reported volume: $0
Outcome Sofia Costoulas: 16.5%; 24h change unavailable
Outcome Laura Samson: 83.5%; 24h change unavailable
Saved rules: This market refers to the tennis match between Sofia Costoulas and Laura Samson in the Sopo, originally scheduled for November 11, 2026 at 11:30AM ET.
This market will resolve to "Sofia Costoulas" if Sofia Costoulas wins by 2 or more sets than Laura Samson, based on the final completed score. Otherwise, it will resolve to "Laura Samson."
If the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play under the match format published by the tournament organizer for that round. For example, if the deciding set has begun when the match ends, Sofia Costoulas can no longer win by 2 or more sets, and this market will resolve to "Laura Samson."
If the match is canceled before play begins, or a result has not been determined by November 25, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve 50-50.
Resolution will be based on official WTA Challenger results.

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