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W50 Nanao: Rira Kosaka vs Natsuho Arakawa
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What is the result of Rira Kosaka vs Natsuho Arakawa?

Volume:
$5,343

Completed Match

 - Polymarket

Completed Match - Polymarket

1W

News

Positive

Negative

Neutral

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Vol.

·

Resolved Sep 21, 2026

Closed: Sep 21, 1:36 AM EST

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Polymarket

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

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$2,970
N/A
N/A
N/A
Settled
Yes
polymarket

W50 Nanao: Rira Kosaka vs Natsuho Arakawa

100%
Yes 100¢No 0¢
0.1¢
N/A
$2,373
N/A
N/A
N/A
Settled
Yes
polymarket

W50 Nanao: Rira Kosaka vs Natsuho Arakawa Set 1 Winner

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

W50 Nanao: Rira Kosaka vs Natsuho Arakawa Set 2 Winner

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

W50 Nanao: Rira Kosaka vs Natsuho Arakawa Total Sets: O/U 2.5

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

W50 Nanao: Rira Kosaka vs Natsuho Arakawa 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

W50 Nanao: Rira Kosaka vs Natsuho Arakawa Set 1 O/U 9.5

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

W50 Nanao: Rira Kosaka vs Natsuho Arakawa Set 1 O/U 10.5

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

W50 Nanao: Rira Kosaka vs Natsuho Arakawa 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

W50 Nanao: Rira Kosaka vs Natsuho Arakawa Set 2 O/U 9.5

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

W50 Nanao: Rira Kosaka vs Natsuho Arakawa Set 2 O/U 10.5

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

W50 Nanao: Rira Kosaka vs Natsuho Arakawa Match O/U 21.5

100%
Yes 100¢No 0¢
3¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

W50 Nanao: Rira Kosaka vs Natsuho Arakawa Match O/U 22.5

100%
Yes 100¢No 0¢
3¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

W50 Nanao: Rira Kosaka vs Natsuho Arakawa Match O/U 23.5

100%
Yes 100¢No 0¢
3¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

W50 Nanao: Rira Kosaka vs Natsuho Arakawa Set Handicap +/-1.5

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

W50 Nanao: Rira Kosaka vs Natsuho Arakawa 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 Rira Kosaka and Natsuho Arakawa in the W50 Nanao, Qualifying, originally scheduled for September 20, 2026 at 11:00PM ET. This market will resolve to 'Rira Kosaka' if Rira Kosaka advances against Natsuho Arakawa. This market will resolve to 'Natsuho Arakawa' if Natsuho Arakawa advances against Rira Kosaka. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 4, 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 Rira Kosaka and Natsuho Arakawa in the W50 Nanao, Qualifying, originally scheduled for September 20, 2026 at 11:00PM ET. This market will resolve to 'Rira Kosaka' if Rira Kosaka advances against Natsuho Arakawa. This market will resolve to 'Natsuho Arakawa' if Natsuho Arakawa advances against Rira Kosaka. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 4, 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 Kosaka vs Arakawa match tracks the current odds, price history, and 24-hour trading volume. Currently, the total volume for this market is $4,917, with $4,917 traded in the last 24 hours. The dashboard provides a visual representation of how traders are pricing the likelihood of each outcome in this contest. It’s a dynamic view of market sentiment, reflecting the collective predictions of participants on Polymarket regarding the result of this competition.

Prediction market odds often reflect a wisdom-of-the-crowd effect, potentially differing from traditional sportsbook odds. Sportsbooks set lines based on their own models and aim to balance action on both sides, incorporating a profit margin. This market, however, is driven by individuals willing to put their capital behind their beliefs, potentially leading to more accurate probabilities, especially as more information becomes available. Discrepancies can arise due to differing information access, biases, or simply the incentive structures of each venue. It's common to see prediction markets react more quickly to new information than sportsbooks.

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 corresponds to the probability of that outcome occurring. As more traders participate, the price adjusts to reflect the collective assessment of the event's likelihood. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current price indicates what traders are willing to pay for a unit of exposure to a particular result in the Kosaka vs Arakawa match, and it fluctuates based on supply and demand.

This market resolves around Sep 28, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the W50 Nanao match between Rira Kosaka and Natsuho Arakawa. The platform will identify the winning player based on publicly available results. The market will then settle, distributing payouts to those who correctly predicted the outcome. Traders should monitor official sources for the final result to understand how this market will be settled.

Several factors could influence the price of this market before Sep 28, 2026. Any news regarding player form, potential injuries, or changes in strategy could shift trader sentiment. Unexpected announcements related to the match schedule or venue could also cause price fluctuations. Furthermore, significant betting activity or large trades on Polymarket itself can create momentum and move the market. Public opinion, as expressed through polls or expert analysis, might also play a role, although the market is ultimately driven by actual trading volume.