Market snapshot: Oct 21, 2026, 9:00 PM UTC. Prices may have changed since this snapshot.

GroupKALSHI

Event GroupKALSHISports

Koizumi vs Kumasaka

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K 0 contracts

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Koizumi vs Kumasaka

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Snapshot from Oct 21, 2026, 9:00 PM UTC

As of Oct 21, 2026, 9:00 PM UTC, the highest-priced outcome on Kalshi is Takuya Kumasaka at 71%.

Kalshi

Takuya Kumasaka71%
Noritaka Koizumi28%

Yes prices. They are not order quotes; check each platform's rules, fees and live prices before trading.

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2 markets tracked

Historical observations can differ from current quotes. Kalshi points are hourly trade averages.

Saved prices are comparisons, not executable quotes. A price difference does not establish arbitrage. Check both contracts, live order prices, fees and available size.

Takuya Kumasaka wins

No data available

Single-Platform Markets(2)

Market	Platform	Price
Takuya Kumasaka wins	Kalshi	71.0%
Noritaka Koizumi wins	Kalshi	28.0%

Rules & Resolution

Saved matching review

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K 0 contracts

Reported volume · provider units

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Same-question pairs

Source snapshot: Oct 21, 2026, 9:00 PM UTC

About This Event

Koizumi vs Kumasaka (Oct 21) If X wins the Koizumi vs Kumasaka professional tennis match in the 2026 M15 Tanagura Round of 16 after a ball has been played, then the market resolves to Yes. The following market refers to the Koizumi vs Kumasaka professional tennis match in the 2026 M15 Tanagura Round of 16 after a ball has been played. If the match does not occur, signaled by a ball being played, due to a player injury, walkover, forfeiture, or any other cancellation, all before the match starts, all markets will resolve to $0.50. If a player withdraws or forfeits after a match has started, that player will resolve to No. If this match is postponed or delayed, the market will remain open and close after the rescheduled match has finished, within two weeks. Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners. This market will close and expire after a winner is declared.

AI-generated analysis based on market data. Not financial advice.

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Event: Koizumi vs Kumasaka
Source snapshot: Oct 21, 2026, 9:00 PM UTC
Reported event volume (provider units): K 0 contracts
Coverage: 2 of 2 saved contracts included.
Prices are saved observations, not executable quotes. Listed close dates do not promise settlement or payout time.

Contract: Takuya Kumasaka wins
Provider: kalshi; ID: kalshi-KXITFMATCH-26OCT21KOIKUM-KUM; status: active
Source: https://kalshi.com/markets/kxitfmatch-26oct21koikum
Observed: Oct 21, 2026, 9:00 PM UTC
Listed close: Nov 5, 2026, 12:00 AM UTC
Reported volume: 0 contracts
Outcome Yes: 71.0%; 24h change unavailable
Outcome No: 29.0%; 24h change unavailable
Saved rules: If Takuya Kumasaka wins the Koizumi vs Kumasaka professional tennis match in the 2026 M15 Tanagura Round of 16 after a ball has been played, then the market resolves to Yes. Secondary rules: The following market refers to the Koizumi vs Kumasaka professional tennis match in the 2026 M15 Tanagura Round of 16 after a ball has been played. If the match does not occur (signaled by a ball being played) due to a player injury, walkover, forfeiture, or any other cancellation (all before the match starts), all markets will resolve to $0.50. If a player withdraws or forfeits after a match has started, that player will resolve to No. If this match is postponed or delayed, the market will remain open and close after the rescheduled match has finished (within two weeks).

Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners. Early close condition: This market will close and expire after a winner is declared.

Contract: Noritaka Koizumi wins
Provider: kalshi; ID: kalshi-KXITFMATCH-26OCT21KOIKUM-KOI; status: active
Source: https://kalshi.com/markets/kxitfmatch-26oct21koikum
Observed: Oct 21, 2026, 9:00 PM UTC
Listed close: Nov 5, 2026, 12:00 AM UTC
Reported volume: 0 contracts
Outcome Yes: 28.0%; 24h change unavailable
Outcome No: 72.0%; 24h change unavailable
Saved rules: If Noritaka Koizumi wins the Koizumi vs Kumasaka professional tennis match in the 2026 M15 Tanagura Round of 16 after a ball has been played, then the market resolves to Yes. Secondary rules: The following market refers to the Koizumi vs Kumasaka professional tennis match in the 2026 M15 Tanagura Round of 16 after a ball has been played. If the match does not occur (signaled by a ball being played) due to a player injury, walkover, forfeiture, or any other cancellation (all before the match starts), all markets will resolve to $0.50. If a player withdraws or forfeits after a match has started, that player will resolve to No. If this match is postponed or delayed, the market will remain open and close after the rescheduled match has finished (within two weeks).

Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners. Early close condition: This market will close and expire after a winner is declared.

Saved cross-platform review:
No exact pair with two valid binary Yes prices is available for comparison.

Explain the named outcomes, material rule/deadline differences, and evidence limits. Keep Polymarket dollar volume separate from Kalshi contract counts. Do not average unrelated contracts, infer missing prices or changes, or describe unreviewed/related pairs as equivalent. Distinguish listed prices from executable bid/ask prices, fees and available size. Do not invent current news, confidence scores or settlement guarantees. Cite the provided source links and identify what further evidence would be needed.

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AI-written background. References identify the evidence used; Wikipedia links under Learn More are additional reading. Prices and provider rules are dated snapshots. This is not financial advice.

KALSHISports

Koizumi vs Kumasaka

Volume$0.00

Markets2

2 of 2

Sort:

Takuya Kumasaka wins

kalshi

Takuya Kumasaka wins

Yes: 71.0¢
No: 29.0¢

Noritaka Koizumi wins

kalshi

Noritaka Koizumi wins

Yes: 28.0¢
No: 72.0¢

Prices are catalog snapshots and may have changed. Check each market's rules and observation time.

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Nov 05, 2026, 12:00 AM UTC

Market Insights

Price gaps of 2 pp+

Same-question pairs

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