Pirates vs Cardinals Prediction, Odds & Player Prop Bets Today – MLB, May 20

In this general view, the St. Louis Cardinals play the Washington Nationals in a baseball game at Busch Stadium Wednesday, April 14, 2021, in St. Louis. (AP Photo/Jeff Roberson)
(AP Photo/Jeff Roberson)
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  • The Pirates are -102 favorites vs the Cardinals
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The Pittsburgh Pirates (-102) visit Busch Stadium to take on the St. Louis Cardinals (-118) on May 20, 2026. First pitch is scheduled for 7:45 pm in St. Louis, MO.

This season, the Pirates are 24-24 against the spread (ATS), while the Cardinals are 30-16 ATS.

Pirates vs Cardinals Starting Pitchers Today:

  • Pirates starting pitcher: Carmen Mlodzinski 3-3, 4.44 ERA
  • Cardinals starting pitcher: Michael McGreevy 3-2, 2.15 ERA

Pirates vs. Cardinals Odds, Run Line, Over/Under & Moneyline

SpreadOver / UnderMoneyline
Pirates-1.5 +165O 8 -115-102
Cardinals +1.5 -200U 8 -105-118

Pirates vs Cardinals Prediction for Today’s Game

Based on recent trends the model predicts the Cardinals will win Wednesday‘s MLB game with 51.1% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.


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We’ve highlighted some favorite MLB player prop bets for Pirates players for Wednesday‘s game, looking at profitable historical betting trends:

Best Pirates Player Prop Bets Today:

  • Spencer Horwitz has hit the Walks Over in 14 of his last 25 games (+12.00 Units / 48% ROI)
  • Marcell Ozuna has hit the Hits Runs and RBIs Under in 16 of his last 20 away games (+11.50 Units / 44% ROI)
  • Konnor Griffin has hit the Home Runs Over in 2 of his last 10 away games (+11.00 Units / 110% ROI)
  • Konnor Griffin has hit the Total Bases Over in 15 of his last 20 games (+10.85 Units / 38% ROI)
  • Konnor Griffin has hit the Runs Over in 12 of his last 20 games (+10.65 Units / 53% ROI)

And here are some favorite MLB player prop bets for Cardinals players for Wednesday‘s game, looking at profitable historical betting trends:

Best Cardinals Player Prop Best Bets Today:

  • JJ Wetherholt has hit the Home Runs Over in 3 of his last 10 games at home (+13.70 Units / 137% ROI)
  • Jordan Walker has hit the Runs Over in 15 of his last 25 games at home (+11.10 Units / 44% ROI)
  • Ivan Herrera has hit the Total Bases Over in 16 of his last 25 games (+11.00 Units / 40% ROI)
  • Nolan Gorman has hit the Walks Over in 8 of his last 10 games (+9.70 Units / 97% ROI)
  • Michael McGreevy has hit the Pitching Outs Over in 15 of his last 20 games (+9.60 Units / 41% ROI)
  • The Pittsburgh Pirates have covered the 1st Five Innings (F5) Run Line in 23 of their last 35 away games (+9.95 Units / 24% ROI)
  • The Pittsburgh Pirates have hit the Game Total Under in 24 of their last 40 away games (+8.90 Units / 21% ROI)
  • The Pittsburgh Pirates have hit the 1st Five Innings (F5) Moneyline in 18 of their last 40 away games (+6.10 Units / 13% ROI)
  • The Pittsburgh Pirates have covered the Run Line in 27 of their last 45 away games (+5.85 Units / 9% ROI)
  • The Pittsburgh Pirates have hit the Moneyline in 16 of their last 30 away games (+4.30 Units / 13% ROI)
  • The St. Louis Cardinals have hit the Moneyline in 24 of their last 40 games (+11.80 Units / 29% ROI)
  • The St. Louis Cardinals have covered the Run Line in 22 of their last 30 games (+10.20 Units / 22% ROI)
  • The St. Louis Cardinals have hit the 1st Five Innings (F5) Moneyline in 16 of their last 30 games (+9.15 Units / 29% ROI)
  • The St. Louis Cardinals have covered the 1st Five Innings (F5) Run Line in 20 of their last 30 games (+8.05 Units / 22% ROI)
  • The St. Louis Cardinals have hit the Game Total Under in 10 of their last 15 games (+6.70 Units / 40% ROI)

Pirates Against the Spread (ATS) Record

Against the spread this season, the Pirates are 24-23 against the Run Line (+1.1 Units / 1.83% ROI).

  • 24-24 when betting on the Moneyline for -5.15 Units / -8.25% ROI
  • 26-21 when betting on the total runs Over for +2.6 Units / 4.87% ROI
  • 21-26 when betting on the total runs Under for -7.35 Units / -14.07% ROI

Cardinals Against the Spread (ATS) Record

Against the spread this season, the Cardinals are 30-16 against the Run Line (+6.9 Units / 9.81% ROI).

  • 28-19 when betting on the Moneyline for +13.65 Units / 28.32% ROI
  • 21-23 when betting on the total runs Over for -4.3 Units / -8.34% ROI
  • 23-21 when betting on the total runs Under for -0.35 Units / -0.67% ROI

Cardinals vs Pirates Home Run Prop Bets Today

Yes
Brandon Lowe +400
Oneil Cruz +450
Jordan Walker +575
Nolan Gorman +650
Alec Burleson +725

Cardinals vs Pirates Total Hits Prop Bets Today

Over Under
Nick Gonzales 0.5 -250 0.5 +180
Jordan Walker 0.5 -250 0.5 +180
Oneil Cruz 0.5 -225 0.5 +165
Alec Burleson 0.5 -225 0.5 +165
Ivan Herrera 0.5 -210 0.5 +155

Cardinals vs Pirates Strikeout Prop Bets Today

Over Under
Jordan Walker 0.5 -275 0.5 +195
Victor Scott II 0.5 -155 0.5 +115
Michael McGreevy 3.5 -150 3.5 +110
Nathan Church 0.5 -125 0.5 -105
Carmen Mlodzinski 4.5 -105 4.5 -125

Pirates Keys to the Game vs. the Cardinals

The Pirates are just 0-18 (.000) when trailing entering the 9th inning this season — tied for lowest in MLB; League Avg: .052.

The Pirates are just 1-12 (.077) when allowing 10 or more hits this season — 3rd lowest in MLB; League Avg: .248.

The Pirates are 22-3 (.880) when allowing 4 or fewer runs this season — 2nd best in MLB; League Avg: .722.

The Pirates are 15-8 (.652) after a loss this season — 4th best in MLB; League Avg: .482.

Cardinals Keys to the Game vs. the Pirates

The Cardinals are 16-6 (.727) vs top 10 scoring offenses this season Today, they face the Pirates (seventh in runs scored).

The Cardinals are 3-16 (.158) when trailing entering the 9th inning this season — 2nd best in MLB; League Avg: .052.

The Cardinals were 18-9 (.667) when tied entering the 7th inning in the 2024 season — tied for 3rd best in MLB; League Avg: .498.

The Cardinals were 69-1 (.986) when leading entering the 9th inning in the 2024 season — tied for 2nd best in MLB; League Avg: .949.

Pirates hitters have 29 extra-base hits out of 121 total hits (just 24%) against LHP this season — lowest in MLB.

Pirates hitters have struck out in 28% of their PA’s against LHP this season — 2nd highest in MLB.

Pirates hitters have an OPS of just .648 (876 PA’s) on the road this season — 3rd lowest in MLB.

Pirates hitters have come to the plate with runners in scoring position in 572 of their 1,895 plate appearances (30%) this season — 2nd highest in MLB.

Cardinals hitters have struck out in just 18% of their PA’s against LHP this season — 3rd best in MLB.

Cardinals hitters are slugging .275 with two-strikes this season — 5th best in MLB.

Cardinals hitters are slugging .249 on pitches out of the zone this season — tied for 4th best in MLB.

The Cardinals are batting just .212 with two outs this season — 5th lowest in MLB.

Opponents have a groundball batting average of just .213 against Pirates pitchers this season — best in MLB.

Pirates pitchers have walked 11% of batters when facing the leadoff batter in the inning this season — 4th highest in MLB.

Pirates pitchers have allowed three-ball counts to 19% of batters they faced (358/1,848 PA’s) this season — tied for 3rd lowest in MLB.

In games when their opponents have scored three or more runs in an inning, the Pirates won just 11% of the time since the 2025 season — lowest in MLB.

Cardinals pitchers have a strikeout rate of just 37% with two-strikes this season — lowest in MLB.

Cardinals pitchers have a strikeout rate of just 16% with runners in scoring position this season — lowest in MLB.

Opponents have a miss rate of just 23% against Cardinals pitchers this season — tied for 2nd lowest in MLB.

Cardinals pitchers have struck out just 17% of left-handed batters they faced this season — lowest in MLB.

More MLB Reading:


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Our BetMGM betting authors are experts who focus on individual game matchups & player prop bets with an emphasis on betting odds, lines & predictions.

Our BetMGM betting authors are experts who focus on individual game matchups & player prop bets with an emphasis on betting odds, lines & predictions.