Top Fantasy Baseball Waiver Wire Adds: June 16, 2026

The fantasy baseball waiver wire is where championships are won and lost. With the season well past the midpoint of June, rosters are shifting, injuries are piling up, and opportunity is knocking for some under-the-radar names sitting in your league's free agent pool. Here are the top adds to target right now before your leaguemates beat you to the punch — including five specific players we love this week.

Top 5 Waiver Wire Adds This Week

1. Jung Hoo Lee, OF — San Francisco Giants

Jung Hoo Lee is back and showing why the Giants committed big money to bring him stateside. The Korean superstar has elite contact skills, a track record of plus defense, and the kind of gap-to-gap approach that translates beautifully in fantasy. Hitting .331 with a .364 OBP and .809 OPS through 64 games, his xBA of .317 and xwOBA of .336 confirm that the production is very real. He's also chipped in 3 stolen bases and 35 runs, and has the speed to add more as the season progresses. If he's sitting in your free agent pool, this is a must-add — his ownership rate should be far higher than it likely is in your league right now.

2. Jackson Merrill, OF — San Diego Padres

Merrill has taken a massive step forward in his development in 2026, offering a rare combination of average, power, and speed from the outfield. He's hitting in a prime lineup spot for San Diego and has been one of the more consistent fantasy contributors over the past month. Ownership rates don't always reflect his value in shallower leagues — check yours now.

3. Kyle Stowers, OF — Miami Marlins

With the Marlins giving Stowers consistent everyday playing time, the outfielder has rewarded them with impressive power numbers. He's been making hard contact at an elevated rate and has the kind of raw power that plays in all formats. Miami's lineup isn't intimidating, but Stowers is producing in the middle of it regardless. A strong add in deeper leagues and a must-add in any format where he's sitting at under 50% owned.

4. Walbert Ureña, SP — Los Angeles Angels

Walbert Ureña has quietly become one of the most exciting young arms to emerge on the waiver wire this season. The 22-year-old right-hander is posting a 2.60 ERA across 11 starts and 62.1 innings, pairing premium velocity — his fastball sits at 97.6 mph — with a 26.9% whiff rate that confirms his swing-and-miss ability is the real deal. His xERA of 3.31 is particularly encouraging, suggesting his surface numbers aren't a fluke. Yes, the 12.9% walk rate is something to monitor, but when you're running a 97-plus fastball and limiting hard contact to just a 33.1% hard-hit rate and 5.7% barrel rate, hitters are simply not doing damage even when they make contact. At just 22 years old with front-of-rotation stuff, Ureña is the kind of arm that can explode onto the scene before the rest of your league catches on. Add him now while ownership remains low.

5. Tanner Bibee, SP — Cleveland Guardians

If Bibee is still available in your league after battling some early-season inconsistency, now is the time to pounce. Over 15 starts in 2026, he's posted a 3.96 ERA with 71 strikeouts across 84.0 innings, and his 27.0% whiff rate shows the swing-and-miss stuff is very much still there. The concern is a 10.3% barrel rate allowed and an xERA of 4.67, meaning some regression risk remains. That said, Cleveland has shown they believe in him as a rotation piece, and his strikeout upside alone makes him worth a roster spot in most formats. Grab him before the rest of your league notices.

Streamers and Depth Adds Worth Rostering

Starting Pitching Depth

Beyond the names above, always target pitchers with two starts in the coming week, especially if they're facing bottom-third offenses. Even a back-end arm with a favorable double-start schedule can outscore a top-tier ace with only one outing. Check for any recent Triple-A call-ups who dominated the minors and are now getting a legitimate rotation look.

Relief Pitching

Closer situations remain volatile in mid-June. If a team's primary closer has recently been demoted or landed on the IL, the next-in-line is an instant add. Focus on high-leverage arms with strong strikeout-to-walk ratios who are positioned to inherit saves sooner rather than later.

Hitters to Prioritize

Outfielders and Middle Infielders

Focus on hitters who have earned everyday playing time due to injuries above them on the depth chart and are batting in the top third of a strong lineup. Second base and shortstop eligibility is gold in fantasy — target any middle infielder who has reclaimed a starting role, is running aggressively, and is showing stolen base upside. That combination can put you over the top in mixed leagues.

Corner Infield and Catchers

Power upside is the name of the game at the corners. Any corner infielder with recent multi-homer games and elevated exit velocity trends is worth a roster spot. At catcher — the thinnest position in fantasy — if a starter is banged up, their backup suddenly becomes a top-five add regardless of name recognition.

Final Thoughts

The waiver wire is a living, breathing resource. Check it daily, act fast on breaking news, and don't be afraid to make bold moves. The managers who stay proactive in June are the ones hoisting trophies in September. Good luck this week — and make sure you hit that waiver claim before midnight.