TOTAL VOLUME:

$134b

24H VOL:

$103,397,351

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,410,176,180

399,592

Markets across

30,097

events

MATCHED EVENTS:

2,622

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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ITF Cary: Yuki Naito vs Lucrezia Stefanini
polymarket
kalshi

Who will win the ITF Cary match between Yuki Naito and Lucrezia Stefanini?

Volume:
$1,219,409

Lucrezia Stefanini

 - Kalshi

Lucrezia Stefanini - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 1, 2026

Closed: Jun 30, 9:09 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Lucrezia Stefanini

View
100%
Yes 100¢No 0¢
100¢
N/A
$840,695
N/A
N/A
$441,569
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Total Sets: O/U 2.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$22
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Match O/U 22.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$20
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Match O/U 23.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$20
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Set 1 O/U 8.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$20
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Set 1 O/U 10.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$20
N/A
N/A
N/A
Settled
Yes
kalshi

Yuki Naito

0%
Yes 0¢No 100¢
100¢
N/A
$376,129
N/A
N/A
$155,611
Settled
No
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini

0%
Yes 0¢No 100¢
—
N/A
$2,459
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Set Handicap +/-1.5

0%
Yes 0¢No 100¢
—
N/A
$23
N/A
N/A
N/A
Settled
Yes
polymarket

Completed Match

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Set 2 Winner

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Set 1 Winner

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Match O/U 21.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Set 2 O/U 8.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Set 2 O/U 9.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Set 2 O/U 10.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

ITF Cary: Yuki Naito vs Lucrezia Stefanini Set 1 O/U 9.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 17

Description

This event group covers a professional tennis match between Yuki Naito and Lucrezia Stefanini at the ITF Women's tournament in Cary, NC, scheduled for June 30, 2026 at 11:00 AM ET. The group includes 30 markets on Polymarket spanning match winner, set winners, game totals, and set handicaps, plus 1 market on Kalshi on match completion.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

Both platforms require official ITF statistics as the primary source, resolve incomplete matches to 50-50 or No, and treat walkovers and cancellations identically. Kalshi's binary completion market (Yes if any ball is played and a winner emerges) is logically consistent with Polymarket's match winner and completion markets.Primary resolution logic: Official International Tennis Federation (ITF) match statistics, event records, and governing body publications. Consensus of credible reporting may be used if ITF does not publish final statistics within 2 hours of match conclusion.

Core resolution logic:

  • Match winner resolves to the player who advances after a ball has been played, based on official ITF results.
  • If the match is canceled before play begins or delayed beyond 7 days from scheduled date without play commencing, all markets resolve 50-50 or No.
  • If the match begins but is not completed, match winner and completion markets resolve 50-50 or No; set and game markets resolve 50-50 or No unless that specific segment was completed.
  • Walkovers (player withdraws before start) resolve all markets to 50-50 or No.
  • Retirements, defaults, or disqualifications after play begins resolve match winner to the advancing player.
  • All tiebreaks, including Champions/Super tiebreaks, count as one game toward game totals.
  • Set handicap markets resolve based on the final completed set count differential.

Edge cases & clarifications:

  • Incomplete Match After Play Begins: If the match begins but is not completed (e.g., retirement after set 1), match winner resolves to the advancing player. Set-specific markets resolve based on completed sets only; incomplete sets resolve 50-50. Game totals resolve 50-50 if the match does not reach the specified set or if that set is incomplete.
  • Walkover Before Match Start: If one player withdraws before the match begins and the other advances automatically, all markets resolve 50-50 or No, not to the advancing player.
  • Delay Beyond 7 Days: If the match is delayed more than 7 days from the scheduled date (June 30, 2026) without a result or without play beginning, all markets resolve 50-50 or No.
  • Tiebreak Counting: Any tiebreak, including first-set tiebreaks and super tiebreaks, counts as exactly one game toward game totals and one set toward set totals.
  • Resolution Timing: Resolution occurs based on official ITF publication of final match statistics. If ITF does not publish within 2 hours of match conclusion, credible reporting consensus may be used.
Timing: Resolution occurs immediately upon official ITF publication of final match statistics, or within 2 hours after match conclusion if ITF publishes delayed. Markets remain open until official result is confirmed. If the match is not played by July 7, 2026 (7 days after scheduled date), markets resolve 50-50 or No.Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.

Polymarket

This market refers to the tennis match between Yuki Naito and Lucrezia Stefanini in the ITF Women Cary, originally scheduled for June 30, 2026 at 11:00AM ET. This market will resolve to 'Yuki Naito' if Yuki Naito advances against Lucrezia Stefanini. This market will resolve to 'Lucrezia Stefanini' if Lucrezia Stefanini advances against Yuki Naito. 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. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.

Kalshi

The Naito vs Stefanini match will be decided once a ball has been played. If the match fails to occur before play begins due to injury, walkover, forfeiture, or cancellation, all related markets resolve to $0.50. Should a player withdraw or forfeit after the match has started, that player's market resolves to No. If the match is postponed or delayed, markets remain open and will close following the rescheduled match completion within two weeks.

Frequently asked questions

Prediction markets like Polymarket and Kalshi operate on peer-to-peer trading mechanics, where odds reflect live supply and demand rather than a sportsbook's fixed margin model. Sportsbooks employ oddsmakers and vig to lock in profit; prediction markets let traders set prices dynamically. This often produces tighter spreads and faster price discovery on major events, though prediction markets may show wider gaps during low-volume periods. For this match, comparing the aggregated odds here to your preferred sportsbook can reveal value opportunities or consensus shifts in real time.

Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Each platform attracts different trader demographics, liquidity pools, and fee structures, which can cause temporary price divergence even on identical underlying events. Polymarket's order-book model and Kalshi's binary contract design create distinct mechanics for position entry and exit. Regulatory differences, platform-specific incentives, and geographic user bases also influence how quickly new information is priced in. Arbitrage traders typically exploit these gaps, but friction costs and withdrawal delays mean small spreads often persist, making this market a natural laboratory for cross-platform trading strategy.

Key catalysts include player injury reports, recent tournament form, head-to-head records, and court surface performance data. Weather forecasts closer to match day, draws announcements, and any coaching changes can shift trader positioning. Betting market moves on major sportsbooks often precede prediction market repricing, so monitoring external odds provides early warning. Social media sentiment, player interviews, and training updates may also influence retail trader activity. Watch for sudden volume spikes, which often signal new information entering the market or sharp traders repositioning ahead of the event.