Seattle Mariners vs. Kansas City Royals
14 signals across 4 markets · $87,609 tracked · resolves May 31, 2026
This event tracks the prediction market for the Seattle Mariners vs. Kansas City Royals MLB game, with traders pricing which team will win. PolySpotter has flagged $5,000 in smart money activity, including a notable signal that a 96% winner is backing the underdog.
Markets (4)
Top trades across all markets
- 96% winner backs underdog
Elite sports bettor with a 96% historical win rate and $1.3M profit is buying the Royals underdog side at 45¢.
$5,000Wallet win rate: 97%Score: 14.0 - Sharp cluster on Under
Three profitable wallets, including a 74% winner and serial cross-market trader, all backed Under with size in an extremely thin MLB total market.
$5,459Score: 11.1 - Royals surge cluster
Coordinated Royals buying drove a major odds move from the low 40s to 90%, with one profitable high-volume wallet participating.
$15,672Score: 8.5 - 90% sports sharp
Sharp sports bettor with a 90% resolved win rate and strong lifetime profit is buying Kansas City at 48¢ despite a liquid market.
$2,328Wallet win rate: 89%Score: 8.0 - 93% win-rate sports sharp
Surface: a highly profitable sports bettor with a 93% resolved win rate and strong cross-market track record bought Seattle at 53¢.
$3,763Wallet win rate: 99%Score: 8.0 - Profitable MLB cross-market sharp
Profitable serial sports bettor put $6k across related Royals-Mariners markets, including a thin-market Royals spread buy that has already moved sharply in their favor.
$6,048Wallet win rate: 61%Score: 7.8 - Profitable serial sports bettor
Sharp serial sports bettor with a 75% long-run win rate and +$162k P&L made a large buy that overwhelmed an otherwise quiet Royals spread market.
$1,500Wallet win rate: 75%Score: 7.0 - Sharp-led Mariners steam
A proven 93% winning wallet joined a $20.8k one-sided Mariners move during a major pre-game volume spike.
$20,822Score: 6.6 - Profitable trio buying long shot
Three profitable sports wallets, including a highly successful bettor up nearly $12M lifetime, all bought Seattle at long-shot prices despite the market moving against them.
$4,061Score: 4.1 - Profitable whale-led cluster
Three wallets bought the Royals in a short burst, led by a high-volume bettor with $1.36M lifetime profit, making this a modest but followable one-sided MLB flow alert.
$9,941Score: 4.1
Top wallets in this event
- 0x204f72…5e14$6,377 · 1 market · 1 alert · 54% wins
- 0xbca08c…9705$6,048 · 1 market · 1 alert · 61% wins
- 0xd48a81…6e90$5,261 · 1 market · 2 alerts · 68% wins
- 0xbd14b6…d62a$5,000 · 1 market · 1 alert · 97% wins
- 0x8b887c…8f33$3,763 · 1 market · 1 alert · 99% wins
- 0xdfa63f…6c6c$2,328 · 1 market · 1 alert · 89% wins
- 0xf405d5…9df2$1,500 · 1 market · 1 alert · 75% wins
- 0x551c8f…fe91$1,376 · 1 market · 1 alert · 72% wins
FAQs
What are the Mariners vs. Royals prediction market odds?
The market prices the chance that either the Seattle Mariners or Kansas City Royals wins the game. On PolySpotter, you can follow the latest Polymarket odds alongside smart money activity for the matchup.
What is the smart money doing on Mariners vs. Royals?
PolySpotter has tracked $5,000 in smart money across this event. The key recent signal is that a trader with a 96% win rate is backing the underdog, which may be worth watching as the market moves.
Can I track Mariners vs. Royals on Polymarket?
Yes. This event hub covers the Mariners vs. Royals Polymarket event, including the traded outcome for which team wins the game and any notable smart money signals detected by PolySpotter.
When does the Mariners vs. Royals market resolve?
The market resolves after the game is completed, based on the official winner. If the game is postponed, it remains open until completion; if canceled with no makeup game or it ends in a tie, it resolves 50-50.