Fantasy Baseball Weekly Waiver Wire Roundup — Monday, June 1, 2026

Top 5 Adds of the Week

Reid Detmers is the most actionable pickup in fantasy baseball right now, and if you haven't filed a claim already, you're running out of runway. The Angels left-hander logged 13.0 innings over the past seven days with a 43.8% strikeout rate — a massive spike from his 31.3% mark over the prior 30 days — backed by a filthy 2.56 FIP. At 48% ownership and climbing fast (+17% in seven days), Detmers is transitioning from waiver wire gem to universally rostered arm in real time. This is a five-game sample, so treat the K-rate surge with appropriate caution, but the workload and FIP tell you the Angels are fully invested in him as a rotation fixture.

Curtis Mead is quietly producing elite-tier plate discipline out of Washington with a .432 wOBA and 20.0% walk rate over the past week. The multi-positional eligibility (1B/2B/3B) adds serious roster flexibility, and his 93.7 mph average exit velocity confirms the quality of contact is real. At just 16% ownership despite a +16% surge, there's still time to add — but that window is closing by the day. A .312 batting average with a homer in a five-game stretch isn't going to stay hidden much longer.

Jake Burger is mashing in Texas, posting a .440 wOBA with a .304 average and two home runs over 27 plate appearances this week. His walk rate has jumped to 14.8% from 10.3% over the past month, suggesting improved pitch selection rather than just a hot streak. With 50.0% hard-hit quality and ownership at 24% (+11%), Burger is a priority add in all formats — the plate discipline improvement is the signal that separates this from noise.

Chase Meidroth won't dazzle you with a .231 average, but dig into the underlying data and the Chicago White Sox middle infielder is flashing real breakout indicators. His strikeout rate plummeted to 17.2% from 23.8% over the prior 30 days, while his hard-hit quality sits at 52.2% with two home runs and an 89.8 mph exit velocity. The multi-position eligibility (2B/3B/SS) at 24% ownership makes him a high-upside stash, especially in deeper leagues where the contact quality and improved K-rate will eventually translate to a higher batting average.

Henry Bolte is doing damage on every ball he touches. The Athletics outfielder posted an 83.3% hard-hit quality with a scorching 99.0 mph average exit velocity this week — those are elite-tier contact metrics that dwarf what most waiver wire bats produce. His .363 wOBA and .333 batting average came without a single homer, meaning the power hasn't even shown up yet. At 11% ownership with a +6% rise, Bolte is the sleeper in this top-five group with the most room to climb.

Biggest Risers in Ownership

Reid Detmers leads all players with a +17% ownership spike to 48%, and yes, the underlying data fully justifies the rush. A 43.8% strikeout rate and 2.56 FIP over 13.0 innings pitched in seven days is the kind of profile that makes him a must-roster arm, not just a streaming option.

Curtis Mead surged +16% to 16% ownership on the strength of a .432 wOBA and elite walk rate. The multi-position eligibility is the cherry on top — if he maintains this plate discipline, he's a top-100 player by mid-June.

Seranthony Domínguez jumped +14% to 54% ownership in Chicago. As a reliever with surging ownership at that clip, managers are clearly betting on a firming role. He's the highest-owned player on this risers list and trending toward universal roster status in standard leagues.

Jake Burger climbed +11% to 24% on the back of a .440 wOBA week with improved walk numbers. The pickup is justified — the combination of power (two homers), plate discipline (14.8% BB rate), and consistent at-bats (27 PA) over five games is a strong foundation.

Chase Meidroth rose +8% to 24%, driven by his declining strikeout rate and multi-position utility. Two homers in a week from a contact-oriented profile at a thin position (middle infield) will keep pushing that number higher.

Buy Low Candidates

The buy-low tier this week is stacked with players whose surface stats don't yet reflect the quality of contact underneath. These are the names you want on your roster before the batting average catches up to the exit velocity.

Coby Mayo is the headliner here and it isn't close. The Orioles corner infielder posted a staggering 103.8 mph average exit velocity with 87.5% hard-hit quality and a .481 wOBA — all while dropping his strikeout rate from 30.1% to just 10.0% over the past week. At only 2% ownership, this is an early signal sample, but those Statcast numbers are screaming. If Mayo sustains even half of this contact quality, he'll be a top-five add within two weeks.

Ryan McMahon quietly authored a monster week in New York with a .524 wOBA, 83.3% hard-hit quality, 99.8 mph exit velocity, two home runs, and a .364 batting average. At 2% ownership, the market hasn't noticed yet — likely because McMahon's name doesn't carry prospect shine. This is one of the strongest underlying stat lines on the entire waiver wire this week.

Endy Rodríguez hit just .111 on the surface, but a 41.2% walk rate, 100.0% hard-hit quality, 99.7 mph exit velocity, and .357 wOBA tell a completely different story. The Pirates catcher is drawing walks at an absurd rate and making elite contact when he swings. At 1% ownership, he's essentially free — and catcher is perpetually thin.

Tyler Stephenson posted a .395 wOBA with a 99.4 mph exit velocity and 66.7% hard-hit quality, while his strikeout rate dropped to 16.7% and walk rate rose to match. At 5% ownership, the Reds catcher is a legitimate buy-low target at the game's thinnest position. The underlying metrics suggest a player approaching a true breakout.

Jackson Holliday is less of a "buy low" and more of a "buy now before it's too late." The Orioles infielder's .430 wOBA and 95.9 mph exit velocity came with a 14.3% strikeout rate — down from 18.8% over the prior month. At 42% ownership he's not a traditional waiver target, but if he's somehow unrostered in your league, prioritize him above almost everyone else on this list.

Garrett Mitchell of the Brewers hit just .222 but posted a 106.2 mph average exit velocity with 100.0% hard-hit quality and a .357 wOBA. His K-rate dropped from 32.9% to 20.0%. At 2% ownership, this is a raw power profile with elite exit velocity that could explode if health and playing time cooperate.

Vaughn Grissom saw his wOBA jump from .257 to .361 over the past week in Anaheim, hitting .292 with a homer across 28 plate appearances. The 1B/2B/3B eligibility at just 1% ownership makes him a no-risk add with meaningful upside. The consistent playing time (28 PA) indicates an everyday role.

Colt Keith slashed his strikeout rate from 21.8% to 11.8% while posting a .432 wOBA and .429 batting average in Detroit. His wOBA surged from .267 over the prior 30 days — a dramatic shift. At 11% ownership with multi-position eligibility (1B/2B/3B), Keith belongs rostered in 12-team leagues immediately.

Blake Dunn is nearly invisible at 0% ownership, but the Reds outfielder posted a .404 wOBA with 100.0% hard-hit quality, 100.6 mph exit velocity, and a .400 batting average over 20 plate appearances. That exit velocity figure is elite by any standard. This is about as deep a sleeper as you'll find.

Carlos Cortes is another Athletics outfielder worth monitoring alongside Bolte. His .475 wOBA came with a 7.4% strikeout rate and 25.9% walk rate — an absurdly disciplined week at the plate. The 13% ownership and solid playing time (27 PA) suggest he's firmly in the lineup, and the approach metrics are sustainable even if the average (.368) normalizes.

Additional names worth a watchlist spot: Ty France (.458 wOBA, two homers, 1% owned), Mickey Gasper (.384 wOBA, 96.0 mph EV, 2% owned), Jorge Mateo (.457 wOBA, 97.2 mph EV, 83.3% hard-hit quality at 1% owned), Isiah Kiner-Falefa (.500 wOBA, 100% hard-hit quality, 97.6 mph EV), and Bryan Torres (.470 wOBA, 94.1 mph EV at 3% owned). The depth of underowned talent this week is remarkable.

Position Scarcity Report

Relief pitching led all positions with 9 signals this week, which aligns with the volatile nature of bullpen roles as we enter June. Seranthony Domínguez headlined the group with his +14% ownership surge, but closers and high-leverage arms like Mason Miller, Jhoan Duran, and Tanner Scott continue to drive waiver activity. If you're thin on saves or holds, this is the week to be aggressive.

Outfield generated 8 signals (plus 3 additional center field-specific signals), making it the deepest offensive position on the wire. Between Bolte, Mitchell, Dunn, Cortes, and Mike Yastrzemski (.445 wOBA, two homers, 1% owned), there's elite talent available at near-zero cost. Outfield depth is a luxury this week — take advantage.

Catcher remains the position of scarcity that never relents, but this week offered a surprising 7 signals at the position. Endy Rodríguez, Tyler Stephenson, Edgar Quero, Mickey Gasper, Pedro Pagés, Adrian Del Castillo, and Joe Mack all flashed improved metrics. If you've been streaming catchers, lock one of these names in — the underlying data is far stronger than typical waiver-tier backstops.

Starting pitching logged 9 combined signals across SP, P, and SP/RP designations, led by Detmers. Names like Chase Burns, Kyle Harrison, and Braxton Ashcraft appeared in the broader signal pool. First base and third base each carried 6 and 4 signals respectively, with multi-position players like Mead and Keith blurring the lines between corner infield slots.

Middle infield (2B/SS combinations) was notably thinner, with only scattered signals. Meidroth and Holliday stand out, but after them the drop-off is steep. If you need a shortstop or second baseman, you may need to trade rather than rely on the wire.

Looking Ahead

The biggest storyline entering Week 10 is the wave of low-ownership Statcast monsters — Coby Mayo, Ryan McMahon, Blake Dunn, and Garrett Mitchell — who are producing elite exit velocities and hard-hit rates at near-zero ownership. Watch whether those contact metrics hold over a second week; if they do, expect ownership to spike dramatically. The catcher position is also unusually active, and any of Rodríguez, Stephenson, or Quero could emerge as legitimate every-week starters if the approach improvements sustain. Finally, keep an eye on Detmers — if his next start confirms the strikeout-rate surge, he'll be a top-30 pitcher by next Monday's roundup.