Event

Boston Red Sox vs. Kansas City Royals

9 signals across 5 markets · $67,859 tracked · resolves May 27, 2026

This Boston Red Sox vs. Kansas City Royals event tracks prediction-market pricing for the May 20 MLB matchup, including the listed over/under 8.5 market. PolySpotter has flagged $3,847 in smart money activity across the event, including a signal tied to a profitable high-volume bettor.

BOS
4
22-27
Final
KC
3
20-30
BOS -105KC -114O/U 7.5
Venue
Kauffman Stadium, Kansas City
Attendance
14,091

Markets (5)

  1. Boston Red Sox vs. Kansas City Royals: O/U 7.52 signals · $39,254 tracked
  2. Boston Red Sox vs. Kansas City Royals4 signals · $19,404 tracked
  3. Boston Red Sox vs. Kansas City Royals: O/U 6.51 signal · $3,870 tracked
  4. Boston Red Sox vs. Kansas City Royals: O/U 8.51 signal · $3,847 tracked
  5. Spread: Boston Red Sox (-2.5)1 signal · $1,484 tracked

Top trades across all markets

  1. Three-wallet one-sided surge

    Three wallets bought $11.4k of Boston at ~40¢ into a 68x volume spike, driving the price to 72¢ in a coordinated one-sided move.

    $11,394Score: 12.0
  2. 89% sharp bought Under

    A highly proven sports bettor with an 89% historical win rate bought Under at 71¢ and the position has already moved to 100¢.

    $1,826Wallet win rate: 87%Score: 10.0
  3. Profitable serial sports whale

    A highly profitable serial sports trader put $37.4K on Over minutes before close, far larger than recent market activity.

    $37,428Wallet win rate: 93%Score: 6.5
  4. Profitable whale in thin lines

    A very large, profitable high-volume wallet is taking meaningful positions in extremely thin Red Sox/Royals lines, including an Under buy at 32¢.

    $3,870Wallet win rate: 54%Score: 6.2
  5. Profitable MLB whale momentum

    A high-volume profitable sports bettor bought Royals before a sharp move from 57¢ to 70¢ amid a major pre-game volume spike.

    $4,389Wallet win rate: 54%Score: 5.5
  6. Profitable serial sports bettor

    Profitable high-volume sports bettor with a long cross-market track record is buying Kansas City at 56¢.

    $1,349Wallet win rate: 61%Score: 4.6
  7. Profitable whale on quiet market

    A highly profitable high-volume sports bettor made a large Red Sox spread buy that dwarfs the market’s prior activity and is part of broader same-event positioning.

    $1,484Wallet win rate: 54%Score: 4.0
  8. Profitable high-volume bettor

    Experienced high-volume sports trader with $2.36M lifetime profit is buying Under despite only modest detection strength.

    $3,847Wallet win rate: 53%Score: 3.0
  9. Profitable serial sports bettor

    Profitable high-volume sports bettor with a long cross-market history is buying Kansas City at 53¢ despite only a weak automated signal.

    $2,273Wallet win rate: 63%Score: 2.0

Top wallets in this event

  1. 0x4bff30fc26$37,428 · 1 market · 1 alert · 93% wins
  2. 0x204f725e14$9,743 · 3 markets · 3 alerts · 54% wins
  3. 0xa7109323c4$3,847 · 1 market · 1 alert · 53% wins
  4. 0x7a888541cc$2,273 · 1 market · 1 alert · 63% wins
  5. 0x75dcd64f82$1,826 · 1 market · 1 alert · 87% wins
  6. 0xbca08c9705$1,349 · 1 market · 1 alert · 61% wins

More on this event

FAQs

What are the Red Sox vs. Royals prediction market odds?

This event page tracks live Polymarket pricing for Boston Red Sox vs. Kansas City Royals, including the O/U 8.5 market listed under the event. Prices can move as bettors react to pitching news, lineups, weather, and in-game expectations.

What is the main market being traded for Red Sox vs. Royals?

The listed child market for this event is Boston Red Sox vs. Kansas City Royals: O/U 8.5, where traders are pricing whether the game total finishes over or under 8.5 runs.

Is smart money betting on Red Sox vs. Royals?

PolySpotter has tracked $3,847 in smart money activity across this event from 1 signal. The recent alert references a profitable high-volume bettor, suggesting notable market participation worth monitoring.

When does the Red Sox vs. Royals market resolve?

The market is tied to the May 20 MLB game and is expected to resolve after the game is completed. If the game is postponed, it remains open until completion; if canceled with no make-up game or it ends in a tie, the described event rules indicate a 50-50 resolution.