Mid-Week Waiver Wire Rankings: Fantasy Baseball Pickups for Week 12

June 18, 2026

Mid-week fantasy baseball waiver wire rankings for Week 12 (2026). Free-agent hitters and pitchers to add include Colt Keith, Cooper Pratt, Jasson Dominguez, Garrett Whitlock, and Ian Seymour.

It's already halfway through Week 12 as we get closer to the MLB All-Star break. At RotoBaller HQ, we are back with more waiver wire advice and return with more waiver wire advice. Today, we review our mid-week fantasy baseball waiver rankings for Week 12— June 15 through June 21 to help fantasy managers in leagues that allow daily moves. The list provides the top 100 hitters and pitchers to help fantasy managers decide who to prioritize off the waiver wire. Find out where key players such as Kerry Carpenter, Jordan Lawlar, Gage Jump, Spencer Horwitz, Colt Keith, and Jasson Dominguez rank. 

There are key performances, prospect promotions, and injuries to watch for this week. The Brewers called up top shortstop prospect Cooper Pratt from Triple-A Nashville on Tuesday, and he went 0-for-3 in his MLB debut. Injuries continue to pile up as the Mariners placed outfielder Randy Arozarena on the injured list while Braves outfielder Michael Harris II was removed from Tuesday's game against the Giants with lower-back tightness.

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 early-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 Cooper Pratt, Jasson Dominguez, Colt Keith, Garrett Whitlock, Ian Seymour, and more. Read some of the waiver wire outlooks below:

Cooper Pratt, Milwaukee Brewers

According to Adam McCalvy of MLB.com, the Milwaukee Brewers are promoting top-100-ranked prospect Cooper Pratt to the major leagues. Per MLB.com, Pratt is considered the overall No. 63 prospect in the sport and the No. 4-best prospect in the team's system. Pratt joined the Brewers in the sixth round of the 2023 MLB Draft but has quickly progressed through the system.

During the 2025 campaign, Pratt spent the entire season with Double-A, where he posted a .238/.343/.348 slash line with eight home runs and 31 stolen bases. He has spent the opening months of the 2026 campaign with Triple-A Nashville, where he has taken a step forward, carrying a .244/.353/.393 line with six long balls and an impressive 17 stolen bases.

His promotion suggests the Brewers could view him as a full-time option to replace the struggling Joey Ortiz at shortstop. His high-end speed and emerging power make him a worthwhile pick-up in all standard 12-team formats.

Colt Keith, Detroit Tigers

Detroit Tigers infielder Colt Keith (wrist) had a day to remember on Monday night in Houston in the Tigers' 9-3 win over the hosting Astros at Daikin Park. Keith went 3-for-4 at the plate with three home runs, a career-high six RBI, and a strikeout to boost his season batting average to .267 and his OPS to .701.

The 24-year-old left-handed hitter went 62 games to begin the 2026 season without clearing the fences before hitting his first home run of the year on June 11 against the Minnesota Vikings, and now he sits at four round-trippers after an out-of-nowhere display of power.

The former fifth-rounder in 2020 came into Monday's series opener with a .257/.299/.335 slash line, .634 OPS, just one home run, 10 RBI, 24 runs scored, and three stolen bases in 191 at-bats. Keith hit exactly 13 home runs in each of his first two years in the big leagues. He's on a homer binge right now, but fantasy managers shouldn't expect it to last.

Keith has minimal power and speed, but he is eligible at first, second, and third base in Yahoo leagues, which makes him more attractive as bench depth in deeper fantasy leagues. He was scratched from Tuesday's lineup with wrist soreness, but X-rays came back negative, and he appears to have avoided a major injury; he remains day-to-day.

Jasson Dominguez, New York Yankees

New York Yankees outfielder Jasson Dominguez (mouth) is sitting out of the starting lineup on Tuesday at home against the visiting Chicago White Sox after he had a tooth pulled earlier in the day, according to MLB.com. With Dominguez starting on the bench, Jose Caballero will make the start in right field and will bat sixth against White Sox right-hander Davis Martin.

The 23-year-old just came off the injured list over the weekend after recovering from a shoulder strain. The Dominican switch-hitter should be back in action on Wednesday, and he should be a regular for the Yankees now that he's recovered from his shoulder injury, with Aaron Judge (ribs), Trent Grisham (hamstring), and Giancarlo Stanton (calf) all sidelined.

Dominguez has yet to reach his full potential at the major-league level, but in the short term he'll have the opportunity to do damage, making him a deep-league option. In only 11 games for the Yanks this year, Dominguez has gone 8-for-38 (.211) with two homers, three doubles, five RBI, five runs, two walks, and six strikeouts.

Garrett Whitlock, Boston Red Sox

Boston Red Sox relief pitcher Garrett Whitlock has been very effective in a setup role this season for the struggling Red Sox, allowing just seven earned runs while racking up 27 strikeouts in 21 2/3 innings in his 22 appearances. He missed 15 days with left knee inflammation but returned last week and looked solid in two scoreless innings since coming back.

Right now, he's clearly behind Aroldis Chapman in Boston's bullpen, and Chapman has been outstanding with 14 saves in 21 games. Chapman has been so good, though, that he's likely to be a hot commodity at the MLB Trade Deadline. If the Sox trade Chapman and keep Whitlock, Whitlock would quickly be an elite closer.

Whitlock could also be on the trading block, though, leaving many unknown factors. If he ends up as the primary closer with the Red Sox or another team, he has the potential to be a great source of saves. If you're in a deep league where you have to move early, stashing him now could be a strategy that pays off down the stretch.

Ian Seymour, Tampa Bay Rays

Tampa Bay Rays starting pitcher/relief pitcher Ian Seymour seems to be moving towards a transition to a spot in the starting rotation after beginning the year in the bullpen. He has a 4.93 ERA and 4.64 FIP in his 38 1/3 innings this season, but his xERA is only 3.54, indicating he has had some below-average contact luck. He has 41 strikeouts in 38 1/3 innings, and his 25% K% is enough to give him an intriguing upside.

The 27-year-old lefty started against the Red Sox last Monday and went four innings, giving up just one run. On Sunday, he came in after an opener and worked 3 1/3 innings against the Angels, allowing two runs on two hits and three walks.

He'll need to improve his control and efficiency as he stretches back out, but his strikeout upside makes him worth stashing in deep leagues if the Rays continue to position him to pitch as a starter or a predictable primary reliever going forward.

First Base Waiver Wire Rankings

Pickups are in priority order:

Second Base Waiver Wire Rankings

Pickups are in priority order:

Third Base Waiver Wire Rankings

Pickups are in priority order:

Shortstop Waiver Wire Rankings

Pickups are in priority order:

Outfield Waiver Wire Rankings

Pickups are in priority order:

Catcher Waiver Wire Rankings

Pickups are in priority order:

Starting Pitcher Waiver Wire Rankings

Pickups are in priority order:

Relief Pitcher/Closer Waiver Wire Rankings

Pickups are in priority order:

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:

Who Should I Pickup?

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2026 Player Decisions. Today's focus is on specific players, including Jordan Lawlar, Colt Keith, Garrett Whitlock, Ian Seymour, Cooper Pratt, Jasson Dominguez, Jackson Holliday, Spencer Horwitz, Gage Jump, Jared Jones, Caleb Kilian, Henry Bolte, Dylan Crews, T.J. Rumfield, Blaze Jordan, Alex Lange, and River Ryan. 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 Jordan Lawlar, Colt Keith, Garrett Whitlock, Ian Seymour, Cooper Pratt, Jasson Dominguez, Jackson Holliday, Spencer Horwitz, Gage Jump, Jared Jones, Caleb Kilian, Henry Bolte, Dylan Crews, T.J. Rumfield, Blaze Jordan, Alex Lange, and River Ryan: