TOTAL VOLUME:

$134.2b

24H VOL:

$134,145,987

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,441,166,947

406,422

Markets across

30,383

events

MATCHED EVENTS:

2,688

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Nippon Ham Fighters vs. Saitama Seibu Lions
polymarket
kalshi

What is the result of Nippon Ham Fighters vs. Saitama Seibu Lions?

Volume:
$182,840

Saitama Seibu Lions

 - Kalshi

Saitama Seibu Lions - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 10, 2026

Closed: Jul 10, 8:09 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

Saitama Seibu Lions

View
100%
Yes 100¢No 0¢
100¢
N/A
$98,031
N/A
N/A
$58,878
Settled
Yes
kalshi

Hokkaido Nippon-Ham Fighters

0%
Yes 0¢No 100¢
100¢
N/A
$84,111
N/A
N/A
$56,955
Settled
No
polymarket

Nippon Ham Fighters vs. Saitama Seibu Lions

0%
Yes 0¢No 100¢
—
N/A
$698
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 Hokkaido Nippon Ham Fighters and Saitama Seibu Lions scheduled for July 10, 2026 at 5:00 AM EDT. Markets across Polymarket and Kalshi are betting on the outcome of this game.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi market has a logical contradiction where both possible game outcomes (Lions win or Fighters win) resolve to Yes, leaving no valid No resolution state. This makes the contract fundamentally unresolvable and unhedgeable.Hero tip: Do not trade the Kalshi version of this market. The contract structure is broken—both teams winning maps to Yes, which violates binary market logic. Use Polymarket only, which correctly maps each team to a distinct outcome. Report Kalshi contract to support for immediate correction or cancellation.

Critical divergence points:

  • Polymarket: Binary outcome structure: Nippon Ham Fighters win resolves to 'Nippon Ham Fighters', Saitama Seibu Lions win resolves to 'Saitama Seibu Lions'. Cancellation, tie, or no make-up game resolves 50-50. Source: https://npb.jp/
  • Kalshi: Logical contradiction: 'If Saitama Seibu Lions wins... resolves to Yes' AND 'If Hokkaido Nippon-Ham Fighters wins... resolves to Yes.' Both outcomes map to Yes with no No state, making the market unresolvable.
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 10 at 5:00AM ET: If the Nippon Ham Fighters win, the market will resolve to "Nippon Ham Fighters". If the Saitama Seibu Lions win, the market will resolve to "Saitama Seibu Lions". 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 determined by the final result of the game originally scheduled for July 10, 2026 at 5:00 AM EDT. If the game is postponed or delayed, the market remains open and closes after the rescheduled game concludes within two days. If the game is cancelled or rescheduled beyond two days, the market resolves to a fair price per official rules. In the event of a tie, the market resolves 50/50.

Frequently asked questions

Prediction markets and sportsbooks price outcomes differently because they operate under distinct incentive structures. Sportsbooks balance action on both sides to lock in profit margins, while prediction markets rely on trader capital and belief to set prices. This market often reflects real-money conviction from sophisticated bettors who profit by outforecasting the crowd, sometimes diverging meaningfully from traditional sportsbook lines. Comparing this market's odds to your preferred sportsbook can reveal edges if you spot systematic pricing gaps.

Key injury announcements, lineup changes, or roster updates for either team can shift odds sharply, especially if star players are sidelined. Weather conditions and venue factors may influence trading activity closer to game day. Betting action from sharp money or large position accumulation can also trigger repricing. Momentum shifts in either team's season, recent performance trends, and head-to-head historical records all serve as catalysts that traders monitor and incorporate into their forecasts.