TOTAL VOLUME:

$134b

24H VOL:

$107,351,958

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,416,970,024

400,720

Markets across

30,097

events

MATCHED EVENTS:

2,633

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Kansas City Royals vs. Washington Nationals
polymarket
kalshi
predict

Kansas City Royals vs. Washington Nationals

Volume:
$6,554,823

Washington

all

3 markets

Kalshi

Polymarket

Predict

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jun 17, 2026

Closed: Jun 16, 9:34 PM 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

Washington

View
100%
Yes 100¢No 0¢
100¢
N/A
$3,092,382
N/A
N/A
$1,790,112
Settled
Yes
polymarket

Kansas City Royals vs. Washington Nationals

0%
Yes 0¢No 100¢
—
N/A
$1,701,950
N/A
N/A
N/A
Settled
Yes
predict

Kansas City Royals vs. Washington Nationals

N/A
N/A
—
$757
$4,833
N/A
N/A
N/A
Settled
No
polymarket

O/U 8.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$208,350
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$46,541
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 7.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$30,676
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 5.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$19,415
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 9.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$15,476
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 6.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$10,977
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

100%
Yes 100¢No 0¢
0.9¢
N/A
$132
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 2.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$69
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 3.5

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

Kansas City

0%
Yes 0¢No 100¢
100¢
N/A
$1,397,632
N/A
N/A
$670,927
Settled
No
polymarket

Spread -1.5

0%
Yes 0¢No 100¢
—
N/A
$4,238
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -2.5

0%
Yes 0¢No 100¢
—
N/A
$8,555
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 10.5

0%
Yes 0¢No 100¢
—
N/A
$4,648
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -3.5

0%
Yes 0¢No 100¢
—
N/A
$4,026
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -2.5

0%
Yes 0¢No 100¢
—
N/A
$1,690
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -3.5

0%
Yes 0¢No 100¢
—
N/A
$1,295
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 11.5

0%
Yes 0¢No 100¢
—
N/A
$1,111
N/A
N/A
N/A
Settled
Yes
polymarket

NRFI

0%
Yes 0¢No 100¢
—
N/A
$408
N/A
N/A
N/A
Settled
No
polymarket

1st 5 Innings O/U 4.5

0%
Yes 0¢No 100¢
—
N/A
$235
N/A
N/A
N/A
Settled
Yes
polymarket

Extra Innings

0%
Yes 0¢No 100¢
—
N/A
$115
N/A
N/A
N/A
Settled
No
polymarket

1st 5 Innings O/U 6.5

0%
Yes 0¢No 100¢
—
N/A
$15
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

0%
Yes 0¢No 100¢
—
N/A
$15
N/A
N/A
N/A
Settled
Yes
Total markets: 25 of 29

Intro

This market tracks the outcome of an MLB game between the Kansas City Royals and Washington Nationals scheduled for June 16, 2026 at 6:45 PM ET, including both the first-five-innings spread and total runs scored. Across Polymarket, Kalshi, and Predict, the consensus probability for Washington Nationals (-2.5) in the first five innings stands at 10.0%, while the over/under 8.5 total runs market shows 100.0% probability. Resolution will be determined by official MLB final statistics published on MLB.com, with credible reporting consensus applied if official data is unavailable within 24 hours of game conclusion. Watch the game's opening inning closely, as early scoring patterns will be critical to resolving the first-five-innings spread market.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

All three platforms (Polymarket, Kalshi, Predict) apply identical resolution logic: official MLB statistics as primary source, 24-hour publication window, consensus reporting fallback, and consistent handling of postponements and cancellations.Primary resolution logic: Official MLB final statistics published on MLB.com; credible reporting consensus if official statistics unavailable within 24 hours of game conclusion

Core resolution logic:

  • Game Winner Market: Kansas City Royals resolves Yes if KC wins the game; Washington Nationals resolves Yes if Washington wins the game
  • First Inning Scoring Market: Yes if at least one run is scored in the 1st inning by either team; No if zero runs score in the 1st inning
  • Postponement: Markets remain open until the game is completed; check MLB.com home team schedule for makeup game details
  • Cancellation with No Makeup: Game winner market resolves 50-50; first inning market resolves 50-50
  • Tie Game: Game winner market resolves 50-50; first inning market resolves based on actual runs scored in 1st inning

Edge cases & clarifications:

  • Postponed Game: Market remains open until completion. Bettors must monitor MLB.com home team schedule for makeup game date and time.
  • Canceled Game (No Makeup): Both game winner and first inning markets resolve 50-50.
  • Tie Game: Game winner market resolves 50-50. First inning market resolves based on actual runs scored in the 1st inning regardless of final score.
  • Official Stats Delay: If MLB does not publish official final statistics within 24 hours of game conclusion, resolution uses consensus of credible reporting sources.
Timing: Resolution occurs after game completion and official MLB statistics publication (target: within 24 hours of game end). For postponed games, resolution timing extends to makeup game completion date.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 Kansas City Royals and Washington Nationals, scheduled for June 16 at 6:45PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game. This market will resolve to "Washington Nationals" if the Washington Nationals 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

This event covers the Kansas City vs Washington professional baseball game originally scheduled for June 16, 2026 at 6:45 PM EDT. Resolution depends on the final outcome of the game, with separate markets for each team's victory. If the game is postponed or delayed, the market remains open and closes after the rescheduled game concludes, provided the reschedule occurs within two days of the original date. If the game is cancelled entirely or rescheduled to more than two days after the original date, the market resolves to a fair price in accordance with established rules rather than waiting for a played game.

Predict

In the upcoming MLB game between the Kansas City Royals and Washington Nationals, scheduled for June 16 at 6:45PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game. This market will resolve to "Washington Nationals" if the Washington Nationals 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 like Polymarket and Kalshi often reflect real-time crowd sentiment and information flow differently than traditional sportsbooks. While sportsbooks set odds to balance liability and extract margin, prediction markets aggregate trader beliefs directly. For the Kansas City Royals vs. Washington Nationals matchup, prediction market prices may diverge from sportsbook lines due to different participant bases, liquidity constraints, and risk appetites. Comparing both sources helps identify which market is pricing in recent roster changes, weather, or momentum shifts more efficiently.

Key catalysts for the Kansas City Royals vs. Washington Nationals market include lineup announcements, starting pitcher confirmation, last-minute injuries, and weather updates affecting ball flight and field conditions. Bullpen availability, recent team form, and head-to-head historical trends also influence trader positioning. Breaking news on player status or weather delays can trigger sharp repricing across Polymarket and Kalshi. Monitoring team social media, sports news feeds, and live odds boards in the hours before game time helps traders stay ahead of consensus shifts.