TOTAL VOLUME:

$134.1b

24H VOL:

$133,388,117

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,436,095,462

405,232

Markets across

30,526

events

MATCHED EVENTS:

2,693

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Winston-Salem Open: Hugo Grenier vs Sebastian Baez
polymarket

Winston-Salem Open: Hugo Grenier vs Sebastian Baez

Volume:
$591,968

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Set Handicap +/-1.5

 - Polymarket

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Set Handicap +/-1.5 - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 26, 2026

Closed: Aug 25, 10:24 PM EST

polymarket

Polymarket

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

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Set Handicap +/-1.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$949
N/A
N/A
N/A
Settled
Yes
polymarket

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Match O/U 21.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$172
N/A
N/A
N/A
Settled
Yes
polymarket

Winston-Salem Open: Hugo Grenier vs Sebastian Baez

0%
Yes 0¢No 100¢
—
N/A
$589,649
N/A
N/A
N/A
Settled
Yes
polymarket

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Set 1 Winner

0%
Yes 0¢No 100¢
—
N/A
$949
N/A
N/A
N/A
Settled
Yes
polymarket

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Game Spread +/-4.5

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

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Set 2 Winner

0%
Yes 0¢No 100¢
—
N/A
$39
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

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Total Sets: O/U 2.5

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

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Set 1 O/U 8.5

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

Winston-Salem Open: Hugo Grenier vs Sebastian Baez 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

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Match O/U 22.5

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

Winston-Salem Open: Hugo Grenier vs Sebastian Baez 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
polymarket

Winston-Salem Open: Hugo Grenier vs Sebastian Baez 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

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Match O/U 23.5

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

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Set 1 O/U 10.5

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

Winston-Salem Open: Hugo Grenier vs Sebastian Baez Set 2 O/U 10.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 16

Intro

This market tracks whether the combined games in the Winston-Salem Open match between Hugo Grenier and Sebastian Baez will exceed 21.5, and on Polymarket the current probability for this outcome is 100%. The result will be settled using official ATP match data from https://www.atptour.com/en/scores/current. The match itself is originally scheduled for August 25, 2026 at 5:00PM ET, serving as the key date to monitor for any updates or confirmations regarding match progression and final resolution.

Polymarket

This market refers to the tennis match between Hugo Grenier and Sebastian Baez in the Winston-Salem Open, originally scheduled for August 25, 2026 at 5:00PM ET. This market will resolve to 'Hugo Grenier' if Hugo Grenier advances against Sebastian Baez. This market will resolve to 'Sebastian Baez' if Sebastian Baez advances against Hugo Grenier. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 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 ATP Tour. A consensus of credible reporting may also be used.

Frequently asked questions

Prediction market odds in this market often reflect a different outlook than traditional sportsbook lines. While sportsbooks may incorporate additional factors like public betting trends and house margins, prediction markets rely purely on trader sentiment and real-time data. This can lead to tighter spreads or more volatile shifts, especially as new tournament results or player updates emerge. Traders should watch both sources to spot potential value gaps.

This market resolves around Sep 1, 2026, with the outcome confirmed once the match result is verifiable from credible public reporting. The winner is determined by official tournament announcements and widely covered sports news sources, ensuring an unbiased, transparent conclusion for all market participants.

Key signals that could shift prices in this market include recent tournament performances by either player, injury updates, weather conditions affecting play, and changes in betting trends from major sportsbooks. Any unexpected developments — such as a player withdrawing or a surprise upset in earlier rounds — may cause rapid re-evaluation of chances, moving the market toward one competitor or the other.