Event

Seattle Mariners vs. St. Louis Cardinals

5 signals across 2 markets · $357,487 tracked · resolves May 2, 2026

This Seattle Mariners vs. St. Louis Cardinals event tracks prediction-market odds across the game winner market and the over/under 7.5 total. PolySpotter has flagged $357,487 in smart money across 5 signals, including activity from high win-rate MLB and sports bettors plus a sharp linked cluster on the Under.

SEA
3
12-15
Final
STL
2
14-11
SEA -149STL +123O/U 8
Venue
Busch Stadium, St. Louis
Attendance
31,304

Markets (2)

  1. Seattle Mariners vs. St. Louis Cardinals: O/U 7.51 signal · $333,291 tracked
  2. Seattle Mariners vs. St. Louis Cardinals4 signals · $24,196 tracked

Top trades across all markets

  1. Sharp linked cluster on Under

    Three wallets piled $333k into Under, including a linked-wallet cluster and one exceptionally sharp bettor with an 88% win rate and $4.2M in profits, making this coordinated sports position worth watching despite the market moving against their entry.

    $333,291Score: 22.9
  2. 87% win-rate sports bettor

    A highly proven sports trader with an 87% win rate and over $200k profit is buying the Cardinals at 44¢, making this a strong copy-trade despite the modest ticket size.

    $984Wallet win rate: 87%Score: 8.0
  3. 91% win-rate MLB bettor

    A proven sharp bettor with a 91% win rate and strong lifetime profit bought Cardinals at 41¢, making this a credible underdog position worth tracking.

    $2,947Wallet win rate: 93%Score: 8.0
  4. 94% win-rate sharp bettor

    A very high-performing sports-style wallet with a 94% win rate and nearly $500k profit made a fresh $18.8k buy on the Cardinals at 42¢, making this a strong copy-trade candidate despite the liquid market.

    $18,791Wallet win rate: 92%Score: 8.0
  5. Sharp MLB bettor

    A small but notable MLB bet from a wallet with an exceptional 92% win rate and strong edge is worth surfacing as a sharp bettor signal.

    $1,474Wallet win rate: 94%Score: 4.0

Top wallets in this event

  1. 0x6027854320$18,791 · 1 market · 1 alert · 92% wins
  2. 0x38f0b72768$2,947 · 1 market · 1 alert · 93% wins
  3. 0x9116c8f76a$1,474 · 1 market · 1 alert · 94% wins
  4. 0x691a3ad113$984 · 1 market · 1 alert · 87% wins

More on this event

FAQs

What are the Mariners vs. Cardinals prediction-market odds?

This event covers Polymarket odds for Seattle Mariners to win, St. Louis Cardinals to win, and the O/U 7.5 total. Prices move as traders react to lineups, pitching, injuries, weather, and betting activity before first pitch.

What is the smart money doing on Mariners vs. Cardinals?

PolySpotter has tracked $357,487 in smart-money activity across this event. Recent signals include sharp MLB bettors with 91% and 94% win-rate labels, an 87% win-rate sports bettor, and a sharp linked cluster taking a position on the Under.

Is there an over/under market for Mariners vs. Cardinals?

Yes. In addition to the moneyline-style winner market, this event includes a Seattle Mariners vs. St. Louis Cardinals O/U 7.5 market, where traders are betting on whether the combined final score finishes over or under 7.5 runs.

When does the Mariners vs. Cardinals market resolve?

The market is tied to the MLB game scheduled for April 24 at 8:15 PM ET. It resolves after the game is completed; if postponed, it stays open until the game is played. If the game is canceled with no make-up or ends in a tie, it resolves 50-50.

Where can I track Mariners vs. Cardinals Polymarket activity?

You can use PolySpotter to monitor the Mariners vs. Cardinals event hub, including odds movement, smart-money alerts, and activity across both the winner and O/U 7.5 child markets.