Searching for the best Underdog Fantasy MLB picks today? As the daily fantasy baseball season heats up, finding an edge in the player prop market is essential. Our expert Underdog MLB Pick'em predictions for Saturday, April 4, 2026, spotlight four high-value MLB props spanning both pitchers and hitters. Backed by advanced matchup data, current form, and deep statistical analysis, these top daily fantasy sports plays are designed to give your Underdog entry a clear advantage on tonight's slate.

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Today's Top Underdog Plays:

Underdog Pick'em Analysis & Breakdown

Kevin McGonigle | Higher (1.5 Hits+Runs+RBI)

The second-ranked prospect in baseball arrived as a finished hitter, proving his minor-league stats were no fluke. He is hitting .346 with five RBI through seven games, and his .416 wOBA and 174 wRC+ prove he is making quality contact. McGonigle gets a highly favorable matchup against Cardinals starter Dustin May, who has struggled mightily on the mound as of late. McGonigle's elite plate discipline ensures he will take advantage of those struggles and reach base. Take him higher, as two combined stats is an easy clearance for a player producing at this rate.

Yordan Alvarez | Higher (1.5 Total Bases)

There is simply no hotter hitter in baseball right now than Alvarez. He boasts an .880 slugging percentage and three home runs through eight games, while his .558 wOBA and 272 wRC+ prove the underlying data supports the hot streak. Alvarez receives a massive boost playing at Sutter Health Park in Sacramento, which is currently the best offensive ballpark in the MLB. Facing an Oakland Athletics pitching staff that is among the weakest in the AL, Alvarez is primed for a huge day. He doesn't need a bad matchup or a hitter-friendly park to rake, but getting both is an incredible edge. This line requires just a single and a run, or one extra-base hit. Take him higher.

 

Wilyer Abreu | Higher (1.5 Hits+Runs+RBI)

Abreu's 2026 breakout is the direct result of a more compact, whole-field approach developed during the WBC. He holds an incredible 1.334 OPS, six RBI, and three home runs in six games, featuring a .575 wOBA and a towering 282 wRC+. Opening weekend at Fenway Park is the perfect setting for the red-hot Abreu, especially since he gets to face Padres right-hander Randy Vasquez. Vasquez has a history of struggling against left-handed hitting, and Abreu is reaching base in virtually every game right now. The 1.5 combined line is far too low in this specific matchup, so take him higher.

Ryan Weathers | Higher (5.5 Strikeouts)

Weathers' upper-90s fastball and improving secondary pitches are generating genuine big-league swing-and-miss stuff. He racked up seven strikeouts in just 4.1 innings against Seattle, posting an impressive 36.8% strikeout rate and a massive 14.54 K/9 pace. Weathers' increased velocity and movement make him a nightmare for a Miami Marlins lineup that strikes out at a very high clip. The Marlins know him well, but they enter this game having faced four straight right-handers. Left-handed velocity touching 101 mph presents a wildly different look that will disrupt Miami's timing. Six strikeouts is a comfortable number, so take him higher.

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