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%

BETA
Dashboards
Tour
All
Sports
M25 Sapporo: Jerry Roddick vs Keisuke Saitoh
polymarket

Who will win Jerry Roddick vs Keisuke Saitoh?

Volume:
$42,667

Completed Match

 - Polymarket

Completed Match - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 13, 2026

Closed: Sep 13, 12:46 AM EST

polymarket

Polymarket

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

Completed Match

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$6,780
N/A
N/A
N/A
Settled
Yes
polymarket

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh

0%
Yes 0¢No 100¢
—
N/A
$35,887
N/A
N/A
N/A
Settled
Yes
polymarket

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Set 1 Winner

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Set 2 Winner

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Total Sets: O/U 2.5

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Set 1 O/U 8.5

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Set 1 O/U 9.5

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Set 1 O/U 10.5

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Set 2 O/U 8.5

100%
Yes 100¢No 0¢
0.9¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Set 2 O/U 9.5

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Set 2 O/U 10.5

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Match O/U 21.5

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Match O/U 22.5

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Match O/U 23.5

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Set Handicap +/-1.5

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

M25 Sapporo: Jerry Roddick vs Keisuke Saitoh Set Handicap +/-1.5

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

Description

This market refers to the tennis match between Jerry Roddick and Keisuke Saitoh in the M25 Sapporo, Main Draw, originally scheduled for September 12, 2026 at 10:00PM ET. This market will resolve to 'Jerry Roddick' if Jerry Roddick advances against Keisuke Saitoh. This market will resolve to 'Keisuke Saitoh' if Keisuke Saitoh advances against Jerry Roddick. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 26, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.

Polymarket

This market refers to the tennis match between Jerry Roddick and Keisuke Saitoh in the M25 Sapporo, Main Draw, originally scheduled for September 12, 2026 at 10:00PM ET. This market will resolve to 'Jerry Roddick' if Jerry Roddick advances against Keisuke Saitoh. This market will resolve to 'Keisuke Saitoh' if Keisuke Saitoh advances against Jerry Roddick. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 26, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.

Frequently asked questions

On Polymarket, the dashboard for the Roddick vs Saitoh match tracks the current odds, price history, and 24-hour trading volume. You can see how the implied probability of each outcome changes over time, and monitor the total volume traded in this market. Currently, the 24-hour volume is $42,664 and the total volume is $42,664. This provides a real-time view of how traders are assessing the likely result of the match, all within Polymarket.

Typically, prediction market odds reflect the wisdom of the crowd and can differ from traditional sportsbook odds. Sportsbooks often set initial lines to balance action, while this market allows traders to continuously update their beliefs based on new information. If a significant discrepancy exists between prediction market probabilities and sportsbook odds, it may indicate that the market perceives information differently or has access to unique insights. It’s important to consider both sources when forming your own opinion on the outcome.

On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome. The price of a share directly reflects the probability of that outcome occurring, as determined by supply and demand. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more traders believe an outcome is likely, the higher the price of its corresponding shares will rise. This creates a dynamic and efficient way to aggregate information and forecast the result of the Roddick vs Saitoh match.

This market resolves around Sep 20, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the M25 Sapporo match between Jerry Roddick and Keisuke Saitoh, as reported by a recognized sports authority. The platform will verify the result against these sources to determine which outcome is the winner and distribute payouts accordingly. Traders should monitor official sources for the final result to understand the resolution process.

Several factors could influence the price movement of this market before Sep 20, 2026. Any news regarding player form, injuries, or changes in playing conditions could significantly shift trader sentiment. Unexpected announcements about the match schedule or venue could also create volatility. Furthermore, major upsets in other related matches or tournaments might cause traders to reassess their probabilities for the Roddick vs Saitoh match, leading to adjustments in the market price. Monitoring sports news and player updates will be key.