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Washington Nationals vs. Boston Red Sox
kalshi
predict
polymarket

Who will win Washington Nationals vs Boston Red Sox?

Volume:
$530,726

Washington Nationals vs. Boston Red Sox

all

2 markets

Polymarket

Predict

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 1, 2026

Closed: Jul 7, 7:10 PM EST

polymarket

Polymarket

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

Washington Nationals vs. Boston Red Sox

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$362,042
N/A
N/A
N/A
Settled
Yes
predict

Washington Nationals vs. Boston Red Sox

View
N/A
N/A
—
$953
$2,141
N/A
N/A
N/A
Settled
No
kalshi

Yes

View
100%
Yes 100¢No 0¢
100¢
N/A
$70,329
N/A
N/A
$64,536
Settled
Yes
polymarket

NRFI

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$1,072
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$267
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 7.5

View
100%
Yes 100¢No 0¢
0.8¢
N/A
$177
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 8.5

View
100%
Yes 100¢No 0¢
0.8¢
N/A
$128
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -2.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$117
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -4.5

View
100%
Yes 100¢No 0¢
0.8¢
N/A
$110
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -6.5

View
100%
Yes 100¢No 0¢
0.8¢
N/A
$49
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -5.5

View
100%
Yes 100¢No 0¢
0.9¢
N/A
$19
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 6.5

View
100%
Yes 100¢No 0¢
0.8¢
N/A
$10
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 5.5

View
100%
Yes 100¢No 0¢
0.9¢
N/A
$10
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 4.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$10
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -3.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$5
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 9.5

View
0%
Yes 0¢No 100¢
—
N/A
$76,361
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

View
0%
Yes 0¢No 100¢
—
N/A
$17,161
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 4.5

View
0%
Yes 0¢No 100¢
—
N/A
$161
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

View
0%
Yes 0¢No 100¢
—
N/A
$160
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -2.5

View
0%
Yes 0¢No 100¢
—
N/A
$138
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

View
0%
Yes 0¢No 100¢
—
N/A
$85
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 10.5

View
0%
Yes 0¢No 100¢
0.8¢
N/A
$44
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 6.5

View
0%
Yes 0¢No 100¢
—
N/A
$43
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 11.5

View
0%
Yes 0¢No 100¢
0.8¢
N/A
$35
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -7.5

View
0%
Yes 0¢No 100¢
—
N/A
$19
N/A
N/A
N/A
Settled
Yes
Total markets: 25 of 30

Description

This event group covers two MLB markets for the Washington Nationals vs. Boston Red Sox game scheduled for June 30, 2026 at 7:10 PM ET: (1) the match winner (Nationals or Red Sox), and (2) whether at least one run is scored in the first inning. A third market on Kalshi covers only the first-inning run outcome.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Scheduled game date differs between Kalshi (June 29) and Polymarket/Predict (June 30), and Kalshi lacks explicit edge-case language for cancellations or ties. This creates potential confusion about which market resolves first and how each handles game postponements.Hero tip: Cross-reference the official MLB schedule for the Nationals-Red Sox matchup. If the game is June 29, Kalshi is correct and Polymarket/Predict have a date error. If June 30, Polymarket/Predict are correct and Kalshi's date is wrong. Confirm before trading. Also note that Polymarket and Predict explicitly state postponed games remain open and canceled games resolve 50-50; Kalshi does not specify this, creating settlement risk.

Critical divergence points:

  • Polymarket: Match winner and first-inning run markets both scheduled for June 30, 2026 at 7:10 PM ET. Postponed games remain open until completion. Canceled games with no makeup or ties resolve 50-50. Primary source is official MLB final statistics within 24 hours; secondary source is credible reporting consensus.
  • Predict: Match winner market scheduled for June 30, 2026 at 7:10 PM ET. Postponed games remain open until completion. Canceled games with no makeup or ties resolve 50-50. Primary source is official MLB final statistics within 24 hours; secondary source is credible reporting consensus.
  • Kalshi: First-inning run market scheduled for June 29, 2026 at 7:10 PM EDT (one day earlier than Polymarket/Predict). No explicit language on postponements, cancellations, or tie handling provided. Resolution criteria state: 'If either team scores a run in the first inning... then the market resolves to Yes.'
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 MLB game between the Washington Nationals and Boston Red Sox, scheduled for June 30 at 7:10PM ET: This market will resolve to "Washington Nationals" if the Washington Nationals win the game. This market will resolve to "Boston Red Sox" if the Boston Red Sox win the game. 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 for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.

Kalshi

If either team scores a run in the first inning of the Washington vs Boston professional baseball game originally scheduled for Jun 29, 2026 at 7:10 PM EDT, then the market resolves to Yes.

Predict

In the upcoming MLB game between the Washington Nationals and Boston Red Sox, scheduled for June 30 at 7:10PM ET: This market will resolve to "Washington Nationals" if the Washington Nationals win the game. This market will resolve to "Boston Red Sox" if the Boston Red Sox win the game. 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 for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.

Frequently asked questions

Prediction markets and sportsbooks price the same event through different mechanisms. Sportsbooks set odds to balance their book and lock in profit margins, while prediction markets rely on trader consensus—buy and sell orders from participants risking real capital. This market's odds reflect what traders collectively believe will happen, often incorporating sharper analysis than traditional sportsbooks. Comparing this market's implied probability to major sportsbook lines can reveal where smart money disagrees with the public consensus.

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 naturally creates price gaps. Polymarket and Kalshi may also have distinct user bases with varying access to real-time sports data or different risk appetites. Arbitrage traders typically exploit these spreads, but temporary divergences persist due to order-book depth, settlement confidence, and platform-specific rules. Monitoring both venues helps you identify mispricings and understand where conviction is strongest.

Key catalysts include injury announcements to star players, bullpen availability, recent team performance streaks, and head-to-head matchup history. Weather conditions at game time, lineup changes, and trades before the deadline can shift trader conviction significantly. Breaking news about roster depth or unexpected roster moves often triggers sharp repricing. Monitoring sports news, team social media, and injury reports in the days leading up to the game will help you anticipate market moves.