Mid-Week Waiver Wire Rankings: Fantasy Baseball Pickups for Week 1

April 4, 2026

Mid-week fantasy baseball waiver wire rankings for Week 1 (2026). Free-agent hitters and pitchers to add include Jack Leiter, Paul Sewald, Joey Wiemer, Justin Crawford, and Parker Messick.

Baseball is in full swing, and at RotoBaller HQ, we have more waiver wire advice for leagues that allow daily moves.  Below, you will find our updated mid-week fantasy baseball waiver rankings for Week 1 -- March 30  through April 5. This edition of waiver wire rankings features players like Lucas Ecerg, Jack Leiter, Parker Messick, Justin Crawford, Carson Benge, Joey Wiemer, Paul Sewald, and more. 

There are key performances, prospect promotions, and injuries to watch for this week. Toronto Blue Jays right-hander Cody Ponce will miss significant time with a sprained right ACL. Texas Rangers right-hander Jack Leiter was impressive in his season debut, allowing just two runs on five hits while striking out eight over six innings in Monday's win over the Orioles. Kansas City Royals reliever Carlos Estevez was placed on the injured list with a foot contusion. Lucas Erceg has become Kansas City's closer and picked up the save on Wednesday. 

Stay on top of our weekly waiver wire rankings and turn on MLB news alerts in our free mobile app to stay ahead of the curve. Once you're done here, check out our fantasy baseball prospects articles for the latest names to stash and pick up.

Fantasy Baseball Waiver Wire Pickups List

Since many fantasy baseball leagues have daily waiver-wire moves or multiple waiver-wire runs per week for adding players, this mid-week rankings list should help you keep track of players emerging in the middle of the week before we reach Sunday. This article will guide you through our weekly ranking of the relevant waiver-wire pickup options, including how to prioritize them for your league (depending on the league size).

Waiver wire pickup options, including how to prioritize them for your league - depending on the league size:

Fantasy Baseball Waiver Wire Outlooks

Some of the top waiver wire names include Jack Leiter, Justin Crawford, Paul Sewald, Joey Wiemer, Parker Messick, and more. Read some of the waiver wire outlooks below:

Jack Leiter, SP, Texas Rangers

Texas Rangers starting pitcher Jack Leiter allowed two earned runs, five hits, and one walk during Monday's 5-2 victory over the Baltimore Orioles. He also struck out eight batters and earned the win. It was an impressive season-opening outing from the young right-hander, who is looking to build off a breakout campaign in 2025, when he went 10-10 with a 3.86 ERA and 8.78 K/9 across 29 starts.

Now that he has established himself as a consistent rotation piece, he should rack up innings and become an intriguing starting pitching option for fantasy baseball managers. As it stands, he ranks #62 among starters in RotoBaller's latest fantasy baseball rankings. He's projected to return to the mound on Sunday, April 5, against the Cincinnati Reds. It'll be an exciting pitching matchup as Leiter toes the rubber opposite Chase Burns.

Justin Crawford, OF, Philadelphia Phillies

Philadelphia Phillies outfielder Justin Crawford had the best game of his young career in his team's 6-5 extra-inning win over the Washington Nationals on Wednesday. Crawford went three-for-five with a trio of singles, including the game-winning RBI knock in the bottom of the 10th inning. Through his first 18 MLB plate appearances, Crawford is hitting .412 with an RBI and three runs scored.

The 22-year-old made his bones as an elite average hitter in the minors as well, slashing .334/.411/.452 with seven home runs, 47 RBI, 88 runs scored, and 46 stolen bases across 506 plate appearances at Triple-A in 2025. Power is the main question mark in Crawford's profile, and just one of his seven MLB hits has gone for extra bases so far. Still, if Crawford can continue to rack up base hits, he should start stealing bases at a high rate and could easily move up from the bottom of the Philadelphia batting order.

Paul Sewald, RP, Arizona Diamondbacks

Arizona Diamondbacks reliever Paul Sewald continued his strong start Tuesday against the Detroit Tigers, earning his second save of the season with a clean inning. Sewald struck out the side and has yet to allow a baserunner through 2 1/3 innings of work this year. His early dominance positions him for more opportunities as Arizona works to solidify its closer role.

Sewald saw limited innings last season in Detroit, but he has shown the ability to anchor the back end of a bullpen. The 35-year-old owns a 4.09 ERA and 1.14 WHIP across 398 career innings and is quickly building momentum in Arizona.

Joey Wiemer, OF, Washington Nationals

Washington Nationals outfielder Joey Wiemer is off to a scorching start to the 2026 season, recording two home runs and four RBI in his first eight plate appearances of the year. The 27-year-old right-handed hitter currently appears limited to a short-side platoon role, as he was out of the starting lineup for his team's matchup against Chicago Cubs right-hander Cade Horton on Saturday.

Still, Wiemer could force his way into everyday playing time in short order if he continues to rake. Wiemer logged just 61 MLB plate appearances in 2025 as a member of the Miami Marlins, hitting .236/.279/.436 with three home runs, 12 RBI, and seven runs scored. He struck out in 37.7% of his plate appearances and owns a career strikeout rate of 29.2% across 507 career trips to the plate in the big leagues.

Wiemer could easily regress to career norms over a more extended run of playing time, but he could be a player for deep-league fantasy managers to monitor early in 2026. The 27-year-old is worth an add as a streamer after slashing .588/.682/.1059 with two home runs and five RBI across the first five games of the season.

Parker Messick, SP, Cleveland Guardians

Cleveland Guardians left-handed pitching prospect Parker Messick should be viewed as a priority waiver wire pickup this week after his strong season debut. On Monday evening, the young southpaw was tasked to face the reigning two-time World Series Champions in Los Angeles.

However, Messick looked quite comfortable on the bump, logging six shutout frames. He surrendered just five hits and no walks. He struck out five hitters. Last season, the 25-year-old made his MLB debut and flashed similar upside over a short 39 2/3 inning stint, holding a 2.72 ERA with a 1.31 WHIP.

Last summer, Messick spent most of his campaign with Triple-A Columbus, where he held a 3.47 ERA with a 119:42 K:BB. Given his impressive showing against the game's top lineup, Messick should be viewed as a worthy starting pitcher target on the waiver wire.

First Base Waiver Wire Rankings

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Second Base Waiver Wire Rankings

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Third Base Waiver Wire Rankings

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Shortstop Waiver Wire Rankings

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Outfield Waiver Wire Rankings

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Catcher Waiver Wire Rankings

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Starting Pitcher Waiver Wire Rankings

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Closer/Reliever Waiver Wire Rankings

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Who Should I Pickup Fantasy Baseball Tool

Trying to decide who to pick up off the waiver wire? Check the Who Should I Pickup tool:

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2026 Player Decisions. Today's focus is on specific players like Parker Messick, Joey Wiemer, Clayton Beeter, Royce Lewis, Carson Benge, Lucas Erceg, Jack Leiter, Justin Crawford, Sal Frelick, Jordan Beck, Coby Mayo, Ryne Stanek, Paul Sewald. These are some common searches for 2026 fantasy baseball waiver wire pickups.

Using The Tool. This is a simple tool but very powerful. The first step is to enter the player names that you want to compare. In the first box, search for the first player's name. In the second box, search for the second player's name. Compare up to four MLB players at once, and then click the Who To Pickup? button to see who the recommended waiver wire pickups are based on fantasy baseball rankings, projections, and more.

Improvements For Who Should I Pickup? You may have noticed, our Who Should I Pickup? tool has gotten an overhaul. We've added lots of great features for you to give you as much information as possible to win on the waiver wire in 2026. You'll see MLB player tiles with stats, projections, and a slick new interface. We hope you enjoy!

How It Works. Our RotoBaller staff puts together their weekly fantasy baseball waiver wire rankings and projections based on their research, and updates them constantly throughout the week. That information is the core data that is powering the decision-making in this tool. When you search for player names, you will only see those players who are ranked.

Popular Player Comparison Searches - Who To Pickup

Below are some popular searches and comparisons from our Who To Pickup tool for 2026 for players like Parker Messick, Joey Wiemer, Clayton Beeter, Royce Lewis, Carson Benge, Lucas Erceg, Jack Leiter, Justin Crawford, Sal Frelick, Jordan Beck, Coby Mayo, Ryne Stanek, Paul Sewald:

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