What are the current Cardinals vs Reds prediction market odds?

The live odds are available on the PolySpotter market page and can change as traders react to team news, betting activity, and game-day information.

When does the Cardinals vs Reds market resolve?

The game is scheduled for August 20 at 12:40 PM ET. The market remains open if the game is postponed and resolves after the completed game, with a listed resolution date of August 27, 2026.

What happens if Cardinals vs Reds is canceled or ends in a tie?

If the game is canceled with no makeup game, or ends in a tie, the market resolves 50-50.

What smart money activity is showing in this MLB market?

PolySpotter is tracking $9,544 in smart money across one signal, with recent alerts showing notable buying activity for both the Reds and Cardinals.

Part of: St. Louis Cardinals vs. Cincinnati Reds

St. Louis Cardinals vs. Cincinnati Reds

Q: What is the Cardinals vs Reds prediction market?

It is a two-outcome Polymarket market on the upcoming MLB game between the St. Louis Cardinals and Cincinnati Reds. It resolves to the winning team after the game is completed.

This Polymarket prediction market covers the August 20 MLB matchup between the St. Louis Cardinals and Cincinnati Reds, scheduled for 12:40 PM ET. The market’s live odds and smart money activity are tracked on PolySpotter, with $9,544 in smart money and signals from bettors backing both teams. It resolves after the game is completed, or 50-50 if the game is canceled without a makeup or ends in a tie.

6 smart money signals detected, totaling $37,271.

Categories: Games, MLB, baseball, Sports

Notable Trades

Three-wallet Cardinals buying cluster

Three wallets concentrated $9.5K on St. Louis, alongside a 94x volume spike and 15-point price rise, provide a meaningful but partly corroborated directional signal.

Three wallets bought $9,544 of St. Louis Cardinals shares, with the latest entry at 58¢.
The market saw a 94x historical volume spike and moved 15 percentage points higher in one day.
Two wallets were adding to existing Cardinals positions; one has earned $1.56M lifetime, though the third wallet has a losing record.

$9,544 on St. Louis Cardinals

Sharp bettor adds to Reds

A proven 87% bettor is adding to a Cincinnati Reds position as five wallets deploy $15.4K, though the broader market has conflicting flow.

This bettor wins 87% of trades, is up $106K, and has beaten implied odds by 31 percentage points.
Five wallets bought Cincinnati for $15.4K, including a $7.7K purchase, while Reds odds fell to 38%.
The sharpest wallet was adding to an existing $30K Reds position, signaling increased conviction rather than a routine exit.

$15,407 on Cincinnati Reds

Sharp bettor scaling into Cardinals

A highly profitable bettor with a 92% win rate added to a Cardinals position amid coordinated four-wallet buying, a massive volume spike, and a 15-point price rise.

This bettor has won 92% of 12 resolved trades and is up $60,244, while typically entering around 51%.
Four wallets bought the Cardinals for $22,586 combined as volume reached 126.8 times its historical average.
The bettor added at 53¢ before the market rose to 62%, though the existing position means this is additional rather than entirely new conviction.

$5,000 on St. Louis Cardinals | Wallet win rate: 92%

96% winner scaling into Reds

A highly profitable bettor with a 96% win rate is adding to an existing Cincinnati Reds position at 50 cents.

This bettor has won 43 of 45 resolved trades and is up $100,870 lifetime.
They are adding $4,744 to an existing $9,487 Reds position at 50¢.
The entry price is near even odds, while this bettor’s historical results show unusually strong edge relative to prices paid.

$4,744 on Cincinnati Reds | Wallet win rate: 93%

Profitable serial bettor backs Cardinals

A highly experienced and profitable serial trader with 5,652 resolved bets is taking a fresh Cardinals position at near-even odds.

This bettor wins 72% of 5,652 resolved bets and is up $1.54 million.
The wallet has traded across 480 events and 537 markets, indicating substantial repeat experience rather than a one-off wager.
The Cardinals were bought at 51¢ while the market is essentially even, giving the position meaningful upside if their edge carries over.

$1,270 on St. Louis Cardinals | Wallet win rate: 73%

Profitable serial bettor backs Cardinals

A highly experienced and profitable serial trader with 5,652 resolved bets is taking a fresh Cardinals position at near-even odds.

This bettor wins 72% of 5,652 resolved bets and is up $1.54 million.
The wallet has traded across 480 events and 537 markets, indicating substantial repeat experience rather than a one-off wager.
The Cardinals were bought at 51¢ while the market is essentially even, giving the position meaningful upside if their edge carries over.

$1,306 on St. Louis Cardinals | Wallet win rate: 73%

Top Holders

0x1ab3...64af — Outcome 42211298, $40,817 (100% win rate)
0xd1ed...d7cb — Outcome 42211298, $31,343 (61% win rate)
0x2c33...0563 — Outcome 42211298, $27,701 (60% win rate)
0xfe78...0319 — Outcome 42211298, $18,790 (65% win rate)
0x9c3c...e8c9 — Outcome 42211298, $10,204 (95% win rate)
0x41b4...10da — Outcome 42211298, $9,792 (59% win rate)
0x2ada...2f28 — Outcome 42211298, $2,937 (72% win rate)
0x6f2e...9d0b — Outcome 42211298, $2,778 (75% win rate)
0x3e04...564d — Outcome 42211298, $2,222 (83% win rate)
0x684b...8409 — Outcome 42211298, $1,962 (91% win rate)

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St. Louis Cardinals vs. Cincinnati Reds

3dSt. Louis Cardinals vs. Cincinnati Reds$37,271 tracked6 signalsGamesMLBbaseballSports

In the upcoming MLB game between the St. Louis Cardinals and Cincinnati Reds, scheduled for August 20 at 12:40PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the game. This market will resolve to "Cincinnati Reds" if the Cincinnati Reds 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.

STL

66-63

Final

CIN

61-67

STL -110CIN +103O/U 9

Venue

Great American Ball Park, Cincinnati

Attendance

15,361

Price History — “St. Louis Cardinals”

88¢