TOTAL VOLUME:

$134b

24H VOL:

$107,351,958

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,416,970,024

400,720

Markets across

30,097

events

MATCHED EVENTS:

2,633

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Halle Open: Karen Khachanov vs Ethan Quinn
kalshi
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn

Volume:
$263,748

Halle Open: Karen Khachanov vs Ethan Quinn Set 1 Winner

 - Polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Set 1 Winner - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jun 16, 2026

Closed: Jun 22, 4:00 AM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Set 1 Winner

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$10,977
N/A
N/A
N/A
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Match O/U 23.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$10,657
N/A
N/A
N/A
Settled
Yes
kalshi

Over 17.5 games

View
100%
Yes 100¢No 0¢
100¢
N/A
$1,269
N/A
N/A
$1,259
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Match O/U 22.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$1,068
N/A
N/A
N/A
Settled
Yes
kalshi

Over 22.5 games

View
100%
Yes 100¢No 0¢
100¢
N/A
$738
N/A
N/A
$737
Settled
Yes
polymarket

Completed Match

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$400
N/A
N/A
N/A
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Match O/U 21.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$24
N/A
N/A
N/A
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Total Sets: O/U 2.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$18
N/A
N/A
N/A
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Set 2 O/U 8.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$5
N/A
N/A
N/A
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Set 2 O/U 9.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$5
N/A
N/A
N/A
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn

View
0%
Yes 0¢No 100¢
—
N/A
$211,058
N/A
N/A
N/A
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Set 1 O/U 10.5

View
0%
Yes 0¢No 100¢
—
N/A
$13,710
N/A
N/A
N/A
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Set Handicap +/-1.5

View
0%
Yes 0¢No 100¢
—
N/A
$10,717
N/A
N/A
N/A
Settled
Yes
kalshi

Over 27.5 games

View
0%
Yes 0¢No 100¢
100¢
N/A
$2,865
N/A
N/A
$2,865
Settled
No
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Set 2 Winner

View
0%
Yes 0¢No 100¢
—
N/A
$220
N/A
N/A
N/A
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Set 2 O/U 10.5

View
0%
Yes 0¢No 100¢
—
N/A
$5
N/A
N/A
N/A
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Set 1 O/U 8.5

View
0%
Yes 0¢No 100¢
—
N/A
$5
N/A
N/A
N/A
Settled
Yes
polymarket

Halle Open: Karen Khachanov vs Ethan Quinn Set 1 O/U 9.5

View
0%
Yes 0¢No 100¢
—
N/A
$5
N/A
N/A
N/A
Settled
Yes
Total markets: 18

Description

This event group covers a professional tennis match between Karen Khachanov and Ethan Quinn at the 2026 ATP Halle Open, scheduled for June 15, 2026. Markets track both match completion status and match winner outcome across Kalshi and Polymarket platforms.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi defines resolution by game count thresholds only, while Polymarket defines resolution by match completion status and winner determination. These measure different settlement values and cannot be unified.Hero tip: Kalshi game-count markets and Polymarket completion/winner markets resolve independently. A match can satisfy Kalshi thresholds (e.g., 25 games played) but still resolve No on Polymarket if it ends in retirement or walkover. Always cross-check the actual match outcome and final game count before settlement.

Critical divergence points:

  • Kalshi: Three separate Yes/No markets based on completed game count thresholds (above 17.5, 22.5, or 27.5 games). Resolution depends solely on game count; no mention of match winner or completion status. Key Quote: 'If the number of completed games in the full match is above [threshold]...then the market resolves to Yes.'
  • Polymarket: Two distinct markets: (1) Match Completion—Yes if all games/sets played to completion through normal play; No if forfeit, walkover, retirement, cancellation, or delayed beyond 7 days. (2) Match Winner—resolves to player name if match completes; 50-50 if walkover, cancellation, or delayed beyond 7 days; resolves to advancing player if retirement/default occurs mid-match. Key Quote: 'This market will resolve to Yes if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise...if the match is not completed for any reason, it will resolve to 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 Karen Khachanov and Ethan Quinn in the Halle Open, originally scheduled for June 15, 2026 at 4:00AM ET. This market will resolve to 'Karen Khachanov' if Karen Khachanov advances against Ethan Quinn. This market will resolve to 'Ethan Quinn' if Ethan Quinn advances against Karen Khachanov. 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 ATP Tour. A consensus of credible reporting may also be used.

Kalshi

The event resolves based on the total number of completed games in the full match between Karen Khachanov and Ethan Quinn at the 2026 ATP Halle Round of 32. If the match does not occur before play begins due to injury, walkover, forfeiture, or cancellation, the market resolves to fair price. If postponed or delayed, the market remains open and closes after the rescheduled match concludes within two weeks. If a player retires, markets that can be unconditionally settled based on completed play resolve accordingly; those that cannot are settled at fair market price at the Exchange's discretion.

Frequently asked questions

Prediction markets like these operate on crowd-sourced pricing rather than traditional sportsbook models. Instead of a bookmaker setting fixed odds, traders themselves determine prices through supply and demand, often reflecting sharper consensus on likely outcomes. Sportsbooks typically build in margins and may lag behind market-moving information, whereas prediction markets adjust in real time as new data emerges. For this match, comparing this market's implied probabilities to major sportsbook lines can reveal whether one side is undervalued or overvalued relative to the other.

Polymarket and Kalshi may price this market differently due to variations in their user bases, contract design, and liquidity pools. 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. Polymarket focuses on match completion, while Kalshi emphasizes game totals, attracting traders with distinct analytical approaches. Regulatory frameworks and fee structures also influence how each platform's participants weigh risk and opportunity. These differences create arbitrage opportunities for sharp traders and ensure neither platform's price is artificially isolated from real-world expectations.