TOTAL VOLUME:

$134.1b

24H VOL:

$141,541,542

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,440,096,988

406,065

Markets across

30,522

events

MATCHED EVENTS:

2,692

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Yokohama BayStars vs. Tokyo Yakult Swallows
polymarket
kalshi

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

Volume:
$78,152

Yokohama DeNA BayStars

 - Kalshi

Yokohama DeNA BayStars - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 19, 2026

Closed: Jul 19, 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
$52,249
N/A
N/A
$40,184
Settled
Yes
polymarket

Yokohama BayStars vs. Tokyo Yakult Swallows

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$1,398
N/A
N/A
N/A
Settled
Yes
kalshi

Tokyo Yakult Swallows

View
0%
Yes 0¢No 100¢
100¢
N/A
$24,505
N/A
N/A
$17,996
Settled
No
Total markets: 3

Description

This event group covers a single NPB (Nippon Professional Baseball) matchup between the Yokohama BayStars and Tokyo Yakult Swallows scheduled for July 19, 2026 at 5:00 AM EDT. Markets on both Polymarket and Kalshi are betting on the outcome of this game.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi market contains a logical tautology: it resolves Yes if either team wins, eliminating the possibility of a No resolution in normal game outcomes. This is a data integrity failure that makes the market fundamentally unresolvable as a competitive binary.Hero tip: Treat Polymarket as the authoritative market structure for this matchup. Kalshi's market definition appears to be a template error or misconfiguration. Before trading Kalshi, confirm with their support whether the market is intended to resolve on a different criterion (e.g., 'Will the game be played?' or 'Will there be a winner?') rather than 'Which team wins?'

Critical divergence points:

  • Polymarket: Binary winner-selection market. Resolves to the name of the winning team (Yokohama BayStars or Tokyo Yakult Swallows). Ties and cancellations with no makeup resolve 50-50. Source: Official NPB information or credible consensus reporting.
  • Kalshi: Tautological Yes/No market. Resolves to Yes if Tokyo Yakult Swallows wins OR if Yokohama DeNA BayStars wins. No resolution path exists for normal game outcomes; only cancellation/tie would prevent Yes resolution. This contradicts standard binary sports betting logic.
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 19 at 5:00AM ET: If the Yokohama BayStars win, the market will resolve to "Yokohama BayStars". If the Tokyo Yakult Swallows win, the market will resolve to "Tokyo Yakult Swallows". 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. The primary resolution source will be official information from the NPB. A consensus of credible reporting may also be used.

Kalshi

This event covers the Tokyo Yakult Swallows vs Yokohama DeNA BayStars Japan NPB game originally scheduled for July 19, 2026 at 5:00 AM EDT. Resolution depends on the final game outcome: if the Swallows win, that market resolves Yes; if the BayStars win, that market resolves Yes. If the game is postponed or delayed, markets remain open and close after the rescheduled game finishes within two days. Games cancelled or rescheduled beyond two days resolve to a fair price per rules. Tied games resolve both markets to 50/50.

Frequently asked questions

This dashboard aggregates prediction market pricing for the BayStars vs. Swallows matchup across Polymarket and Kalshi, allowing traders to monitor real-time consensus on the game outcome. Both venues let participants buy and sell shares tied to the result, with prices reflecting the collective forecast of thousands of traders. The cross-platform view shows how each venue is pricing the event, revealing where agreement is strongest and where divergence exists. Total volume across both platforms provides a measure of trader interest and conviction in this matchup.

Prediction markets and sportsbooks use different mechanisms to set odds. Sportsbooks employ oddsmakers and risk management to balance their books and protect margins, while prediction markets rely on continuous trading between participants to establish prices. Prediction market prices often reflect longer-term consensus and can be more responsive to new information as traders update their positions. Sportsbook odds may tighten or shift based on betting volume and liability management. Comparing the two can reveal whether professional bettors and casual traders see the game differently, though both aim to forecast the true probability of each outcome.

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. Each platform attracts different trader demographics, liquidity pools, and fee structures, which can cause temporary price gaps. Polymarket and Kalshi may also have slightly different market designs or settlement rules that influence how traders perceive risk. Arbitrage traders typically exploit these gaps, but if transaction costs or withdrawal delays are high, price differences can persist. Monitoring both venues helps traders identify mispricings and understand which platform's crowd is more bullish or bearish on the outcome.

Key injury announcements, lineup changes, or roster updates for either team can shift trader sentiment significantly. Recent team performance, head-to-head records, and momentum heading into the game often drive repricing. Weather conditions or venue factors may also influence expectations. Breaking news about player availability or coaching decisions typically triggers sharp moves. As game day approaches, final betting action and late-breaking information can cause rapid price swings. Traders should stay alert to official team communications and sports news outlets for catalysts that could reshape the odds.