Looking for the best Underdog Fantasy MLB picks today? Our Underdog MLB Pick'em predictions for Wednesday, August 5th, spotlights two MLB player props worth targeting on today’s action-packed MLB slate. The lines for Yordan Alvarez’s runs batted in and Sal Stewart’s hits + runs + RBI both come with clear situational edges backed by current form, matchup data, and recent trends. If you are building your Underdog Pick'em entry for today’s MLB slate, here is the full case for where we land on both and why the MLB DFS projections set up the way they do.

 

 

 

What are the Best Underdog MLB Pick'em Picks Today?

Today’s two best Underdog Fantasy MLB Pick'em plays are Yordan Alvarez over 0.5 RBI and Sal Stewart over 1.5 hits + runs + RBI. Both props are supported by matchup data, current streaks, and favorable line construction heading into an action-packed day of baseball. Read below for the complete analysis on each.

Yordan Alvarez HIGHER Than 0.5 RBI

Honestly, you could play an Alvarez prop any day and probably be just fine! So, it’s likely no surprise Alvarez is appearing here yet again! He has a .311 ISO out of the All-Star break while hitting nearly .400, and he should have your attention whenever he’s taking on a righty and playing at home. For the 2026 season, the Houston superstar has a 1.161 OPS against RHP, and when playing in his home park, his OPS sits at 1.230.

Out of the All-Star break, the Houston offense is performing at a top-five clip, highlighted by a .347 team wOBA. The Astros have been very good against RHP since the break, and Toronto’s Jameson Taillon has well-documented issues against left-handed hitters, and this season, lefties have a .583 SLG, .392 wOBA, and 3.29 HR/9 against the new Blue Jays starter.

I expect Alvarez to be hitting with men on base, or, he’ll just take matters into his own hands and send one over the fence to cash this pick.

 

Sal Stewart HIGHER Than 1.5 Hits + Runs + RBI

Over his last 10 games, Stewart is slashing .303/.415/.576 with three home runs, 11 RBI, and six runs scored. He has a strong .838 OPS and .234 ISO at home this year, and his numbers against lefties are even more impressive. HOw does a .927 OPS, .393 wOBA, and 145 wRC+ against southpaws sound?

Well, he’s taking on a lefty today in Jacob Lopez, who has surrendered a .502 SLG, .386 wOBA, and 1.82 HR/9 to right-handed hitters in 2026. To his credit, he’s pitched well since rejoining the rotation on a regular basis, but it’s a hitter-friendly park, and the splits are clearly in favor of Stewart this evening.

 

Claim Your Underdog Fantasy Promo Code Bonus

If you have not yet signed up for Underdog Fantasy, there is no better time than tonight. New users who register using promo code ALARM will receive a free pick plus $50 instantly, giving you real money to work with on this slate and every MLB game going forward. Visit fantasyalarm.com/offers to lock in your bonus before the evening games get underway.