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404,028

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2,681

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5

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VS.

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Tokyo Yakult Swallows vs. Yokohama BayStars
polymarket
kalshi

What is the result of Tokyo Yakult Swallows vs. Yokohama BayStars?

Volume:
$84,434

Yokohama DeNA BayStars

 - Kalshi

Yokohama DeNA BayStars - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 9, 2026

Closed: Jul 4, 8:04 AM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Yokohama DeNA BayStars

View
100%
Yes 100¢No 0¢
100¢
N/A
$24,533
N/A
N/A
$15,677
Settled
Yes
kalshi

Tokyo Yakult Swallows

View
0%
Yes 0¢No 100¢
100¢
N/A
$51,655
N/A
N/A
$34,426
Settled
No
polymarket

Tokyo Yakult Swallows vs. Yokohama BayStars

View
0%
Yes 0¢No 100¢
—
N/A
$8,246
N/A
N/A
N/A
Settled
Yes
Total markets: 3

Description

This event group covers a single NPB (Nippon Professional Baseball) matchup between the Tokyo Yakult Swallows and Yokohama BayStars scheduled for July 4, 2026 at 5:00 AM EDT. Markets on Polymarket and Kalshi are tracking the outcome of this game, with different resolution mechanics for edge cases like postponements, cancellations, and ties.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi market contains a logical contradiction: both possible game outcomes (BayStars win and Swallows win) are specified to resolve to Yes, creating an unresolvable market state. Polymarket's binary structure is logically consistent.Hero tip: Avoid trading Kalshi until the market specification is corrected. The market as written cannot distinguish between a BayStars win and a Swallows win, both resolving to Yes. Use Polymarket as your primary reference for this matchup.

Critical divergence points:

  • Polymarket: Binary outcome market with three resolution paths: Swallows win resolves to "Tokyo Yakult Swallows", BayStars win resolves to "Yokohama BayStars", and ties/cancellations/no make-up resolve 50-50. Logically sound.
  • Kalshi: Conditional Yes market with contradictory logic: both "Yokohama DeNA BayStars wins" and "Tokyo Yakult Swallows wins" are specified to resolve to Yes, leaving no distinct resolution path for either outcome or for tie/cancellation scenarios.
Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.

Polymarket

In the upcoming NPB game, scheduled for July 4 at 5:00AM ET: If the Tokyo Yakult Swallows win, the market will resolve to "Tokyo Yakult Swallows". If the Yokohama BayStars win, the market will resolve to "Yokohama BayStars". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.

Kalshi

Resolution is based on the final result of the game originally scheduled for July 4, 2026 at 5:00 AM EDT. If the game is postponed or delayed, markets remain open and close after the rescheduled game concludes within two days. Should the game be cancelled or rescheduled beyond two days, markets resolve to a fair price per official rules. In the event of a tie, all markets resolve to 50/50.

Frequently asked questions

Prediction markets like Polymarket and Kalshi operate on peer-to-peer trading rather than fixed odds set by a sportsbook. Traders buy and sell shares reflecting their belief in each outcome, and the market price emerges from supply and demand. Sportsbooks, by contrast, set odds to balance their book and lock in margin. Prediction market prices often incorporate real-time information and can move more fluidly, while sportsbook odds may lag or reflect house bias. For this matchup, comparing this market's consensus to major sportsbook lines can reveal where sharp money is flowing.

Both platforms host the same underlying event, yet price divergence is common due to structural and participant differences. Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Polymarket's order-book model and Kalshi's AMM-style mechanics attract different trader profiles and liquidity patterns. Time-zone arbitrage, platform fee structures, and user base composition also drive wedges. Additionally, each platform may interpret settlement nuances slightly differently, and liquidity depth varies, causing marginal prices to shift. Savvy traders exploit these gaps by simultaneously trading across venues until prices converge.

Key catalysts include roster changes, injury announcements to star players, recent team performance streaks, and head-to-head historical trends. Weather conditions and stadium factors on game day can shift trader sentiment. Betting-market activity and sharp-money flows on external sportsbooks often precede prediction market repricing. Team news—coaching decisions, lineup adjustments, or momentum shifts in the NPB season—will ripple through this market. Major sports media coverage and expert commentary can also influence trader conviction, causing rapid price swings as new perspectives reach the platform.