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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US Open ATP: Toby Samuel vs Tomas Machac
polymarket

US Open ATP: Toby Samuel vs Tomas Machac

Volume:
$496,079

US Open ATP: Toby Samuel vs Tomas Machac

 - Polymarket

US Open ATP: Toby Samuel vs Tomas Machac - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 30, 2026

Closed: Aug 30, 5:23 PM EST

polymarket

Polymarket

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

US Open ATP: Toby Samuel vs Tomas Machac

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$489,632
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 1 Winner

100%
45%
Yes 100¢No 0¢
0.1¢
N/A
$409
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set Handicap +/-2.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$247
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set Handicap +/-1.5

100%
60%
Yes 100¢No 0¢
0.1¢
N/A
$60
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 3 Winner

100%
40%
Yes 100¢No 0¢
0.5¢
N/A
$4
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 4 Winner

50%
48%
Yes 50¢No 50¢
1¢
N/A
$5,606
N/A
N/A
N/A
Settled
No
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Match O/U 38.5

0%
Yes 0¢No 100¢
—
N/A
$120
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Match O/U 36.5

0%
58%
Yes 0¢No 100¢
—
N/A
$2
N/A
N/A
N/A
Settled
Yes
polymarket

Completed Match

100%
1%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 2 Winner

100%
45%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 1 O/U 8.5

0%
77%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 2 O/U 8.5

100%
2%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Total Sets: O/U 3.5

0%
66%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 1 O/U 9.5

0%
54%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 2 O/U 9.5

0%
98%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Total Sets: O/U 4.5

0%
30%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Match O/U 40.5

0%
44%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 1 O/U 10.5

0%
29%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 2 O/U 10.5

0%
98%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 3 O/U 8.5

0%
98%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 3 O/U 9.5

0%
99%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Game Spread +/-0.5

100%
Yes 100¢No 0¢
1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 3 O/U 10.5

0%
98%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 4 O/U 8.5

50%
48%
Yes 50¢No 50¢
2¢
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

US Open ATP: Toby Samuel vs Tomas Machac Set 4 O/U 9.5

50%
2%
Yes 50¢No 50¢
—
N/A
N/A
N/A
N/A
N/A
Settled
No
Total markets: 25 of 26

Intro

This market tracks whether the combined games in the US Open ATP match between Toby Samuel and Tomas Machac will exceed 38.5 games on Polymarket, using ATP Tour official results as the resolution source. The current probability for the leading outcome, exceeding 38.5 games, is 100%. The match is originally scheduled for August 30, 2026 at 11:00 AM ET, serving as the key catalyst to watch for resolution.

Polymarket

This market refers to the tennis match between Toby Samuel and Tomas Machac in the US Open ATP, originally scheduled for August 30, 2026 at 11:00AM ET. This market will resolve to 'Toby Samuel' if Toby Samuel advances against Tomas Machac. This market will resolve to 'Tomas Machac' if Tomas Machac advances against Toby Samuel. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 13, 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

On Polymarket, this dashboard tracks the latest odds and price history for the US Open ATP Samuel vs Machac match market, alongside real-time volume of $494,703 and 24-hour volume of $491,615. It provides a focused view of how traders on Polymarket are pricing the contest as it approaches, showing shifts in sentiment and liquidity without any cross-platform aggregation.

This market resolves around Sep 6, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result is determined by the official match conclusion, and the platform will update the market accordingly based on confirmed scores from accepted sources.

Injuries, recent match forms, or weather updates can shift this market as the event nears. Media commentary, betting trends, and practice session reports may also influence trader sentiment. Any last-minute changes to player availability or court conditions could cause rapid price swings, especially with volume of $491,615 indicating active trading days.