Sports
Polymarket market
Track live probability, outcome prices, volume, liquidity, and resolution details for Cobolli vs. Zverev: Set 1 Games O/U 8.5. The market currently shows a live probability of 79%, $160.9 in 24h volume, and $11.8K in liquidity.
Probability
79%
24h Volume
$160.9
Liquidity
$11.8K
Chart outcome
Switches which outcome price history is shown.
Current
79%
Change
+35%
High
80%
Low
44%
Over moved from 44% to 79% over the last week, trading between 44% and 80%.
Over price history from Polymarket CLOB.
18 points
This market is about the first set in Flavio Cobolli vs. Alexander Zverev at Roland Garros, with the line set at 8.5 games. In plain terms, it asks whether the opening set will be a straightforward 6-2/6-3 type set or whether it will stretch to at least nine games, such as 6-4 or a tiebreak set.
The event is the ATP men’s match between Cobolli and Zverev at Roland Garros, scheduled for June 7, 2026 at 9:00AM ET. The settlement rule is simple: “Over” wins if the first set reaches 9 games or more, and “Under” wins if the first set ends with 8 games or fewer. A first-set tiebreak counts as one game for this total, and if the first set is never completed, the market resolves 50-50.
Tennis sets can swing quickly depending on serve quality, returning ability, and how competitive the opening games are. Zverev is the more established name, but Cobolli’s level, the clay-court setting at Roland Garros, and how closely the first set is contested all matter for whether the total clears 8.5. The market is essentially pricing the chance that the set stays tight enough to reach at least 9 games.
Anything that changes expectations for a long or short opening set can move this market, especially confirmed lineup or fitness information before first serve. A strong serving start from either player, an early break, or signs that one player is struggling physically would point toward the Under, while a balanced hold-for-hold start or a set headed toward 6-4 or a tiebreak would support the Over. Because this is a first-set game total, the price is especially sensitive to the first few games rather than the overall match result.
The current market price implies roughly a 79% chance for the leading outcome, based on live Polymarket pricing. That number is not a prediction from PredictionNinja and it is not a guarantee; it is the current crowd-priced view of the market and can change quickly when new information appears.
Related markets
Readers should verify that the match actually starts and that the first set is completed, since an unfinished set resolves 50-50 under the posted rules. The official Grand Slam result is the source of truth, so any scorekeeper or broadcast confusion should be checked against the official match record. The main ambiguity risk is a suspension, retirement, or cancellation before the first set finishes, which changes the settlement away from a normal over/under result.
Track live probability, outcome prices, volume, liquidity, and resolution details for Cobolli vs. Zverev: Set 1 Games O/U 8.5. The market currently shows a live probability of 79%, $160.9 in 24h volume, and $11.8K in liquidity.
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Over
79%
Under
21%
This market is currently listed with an end date of Jun 14, 2026. Market timelines can change if the underlying event is postponed, rescheduled, or resolved early.
This market refers to the tennis match between Flavio Cobolli and Alexander Zverev in the Roland Garros ATP, originally scheduled for June 7, 2026 at 9:00AM ET. This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under." Any first-set tiebreak counts as one (1) game toward the total. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50. Resolution will be based on official Grand Slam results.
Probability signal
The current price implies a strong favorite, so new information would need to be meaningful to move the market sharply.
Liquidity context
Liquidity is relatively deep for a prediction market page, so quoted prices may be more reliable than very thin markets.
Spread
The bid-ask spread is tight, which usually points to a more actively priced market.
Recent movement
The 24h move is notable, so recent news or market activity may have changed trader expectations.
The current displayed probability is 79%, based on the latest normalized Polymarket data available to PredictionNinja.
The rules and resolution criteria are pulled from the market description provided by Polymarket when available.
Prediction markets can move whenever traders react to new information, liquidity changes, injuries, announcements, news, or other event-specific developments.
No. PredictionNinja displays market data and context for research only. It is not financial, legal, betting, or investment advice.
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24h Vol
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Spread
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7/6/2026
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Liquidity
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Spread
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7/6/2026
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