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St. Louis Cardinals vs Miami Marlins Picks and Prediction for Monday April 20 2026

By: Eddie Kline Published 04/20/2026, 01:00 AM ET

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Cardinals Preview

LoanDepot Park will play host to a Monday night MLB clash between the St. Louis Cardinals and the Miami Marlins. Be ready for the baseball season with all of our MLB predictions. The Cardinals (13-8) are riding a five-game winning streak and have scored 34 runs over that stretch. On Sunday, SS Masyn Winn delivered a three-run double in the tenth inning to lift St. Louis to a 7-5 road victory against Houston.

Twenty-five year old righty Michael McGreevy (1-1 2.49 ERA) will head to the hill for the Cardinals in this contest. Last time out, McGreevy (5 IP) allowed four hits and two runs during a 6-5 home victory versus Cleveland.

Marlins Preview

The Miami Marlins are three games above .500 at home and trail NL East Division leading Atlanta by 4.5 games. On Sunday, SP Eury Perez (2-1) fired seven shutout frames and fanned seven batters to lead Miami to a 5-3 home victory versus Milwaukee. Closer Pete Fairbanks struck out two batters in the ninth inning to earn his third save for the Marlins.

Miami manager Clayton McCullough will give the nod to twenty-seven year old righty Max Meyer (1-0 4.12 ERA) on Monday. Through 19 plus innings, Meyer has struck out 20 batters and owns a respectable 1.32 WHIP.

Cardinals vs Marlins Pick

Miami OF Christopher Morel is on the 10-day injured list with an oblique strain and is expected to return early next month. Through 21 games, St. Louis ranks 14th in OPS and 12th in runs scored. For the season, Miami ranks 11th in OPS and 13th in runs scored. Take the Marlins to win at home. Final Score Prediction, Miami Marlins win 5-3.

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