Sports
Polymarket market
Track live probability, outcome prices, volume, liquidity, and resolution details for Cobolli vs. Zverev: Set 1 Games O/U 9.5. The market currently shows a live probability of 56%, $170.6 in 24h volume, and $12.2K in liquidity.
Probability
56%
24h Volume
$170.6
Liquidity
$12.2K
Chart outcome
Switches which outcome price history is shown.
Current
44.5%
Change
-5.5%
High
50%
Low
44.5%
Under moved from 50% to 44.5% over the full available history, trading between 44.5% and 50%.
Under price history from Polymarket CLOB.
7 points
This market is about the opening set in Cobolli vs. Zverev at Roland Garros, with the line set at 9.5 games. In plain terms, the question is whether the first set reaches at least 10 games, which would mean a 6-4, 7-5, or a tiebreak set that runs longer.
The market concerns Flavio Cobolli and Alexander Zverev in the Roland Garros ATP match originally scheduled for June 7, 2026 at 9:00 AM ET. It resolves to Over if the first set has 10 or more games and Under if it ends with 9 or fewer; a tiebreak counts as one game in the total. If the first set is never completed, or if the match is canceled before play starts or delayed more than seven days without starting, the market settles 50-50 instead of a normal win or loss.
First-set game totals in tennis can swing on serving strength, early breaks, and how quickly both players find rhythm on clay. Zverev is typically associated with a big serve and shorter service games, while Cobolli’s ability to hold serve or stay close can push the set toward 10 games or more, so the market is really pricing the chance of a tight opening set versus one decided more quickly.
Anything that changes expectations for the opening set can move this market, especially confirmed lineup and fitness information, last-minute injury or retirement concerns, and whether either player is expected to start slowly. On clay at Roland Garros, longer exchanges and more break chances can also make a 6-4 or 7-5 set feel more plausible, while a dominant serving run from Zverev or an early break that snowballs would favor the Under. Because the market resolves from official Grand Slam results, only the actual first-set score matters in the end.
The current market price implies roughly a 56% 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
Before settlement, check that the match actually begins and that the first set is completed, since an unfinished set triggers the special 50-50 rule. The key source of truth is the official Roland Garros / Grand Slam match result, not unofficial scoreboards or commentary. Readers should also note the deadline window: if play does not start and then remains delayed beyond seven days, the market also settles 50-50, so the exact start status matters as much as the score itself.
Track live probability, outcome prices, volume, liquidity, and resolution details for Cobolli vs. Zverev: Set 1 Games O/U 9.5. The market currently shows a live probability of 56%, $170.6 in 24h volume, and $12.2K in liquidity.
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Over
55.5%
Under
44.5%
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 10. 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 market is priced near the middle, which usually means traders are still weighing competing outcomes.
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 wider, so the headline probability may be less precise than it looks.
Recent movement
The 24h move is modest, suggesting the market has not repriced dramatically in the latest feed.
The current displayed probability is 56%, 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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